3427749 has 12 divisors (see below), whose sum is σ = 5332236. Its totient is φ = 2109312.

The previous prime is 3427747. The next prime is 3427751. The reversal of 3427749 is 9477243.

3427749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3427747) and next prime (3427751).

It can be written as a sum of positive squares in 2 ways, for example, as 1397124 + 2030625 = 1182^2 + 1425^2 .

It is not a de Polignac number, because 3427749 - 2¹ = 3427747 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3427747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14532 + ... + 14765.

It is an arithmetic number, because the mean of its divisors is an integer number (444353).

Almost surely, 2^3427749 is an apocalyptic number.

3427749 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3427749 is a deficient number, since it is larger than the sum of its proper divisors (1904487).

3427749 is a wasteful number, since it uses less digits than its factorization.

3427749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29316 (or 29313 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 3427749 is about 1851.4181051291. The cubic root of 3427749 is about 150.7774303855. Note that the first 3 decimals are identical.

The spelling of 3427749 in words is "three million, four hundred twenty-seven thousand, seven hundred forty-nine".