3447149 has 4 divisors (see below), whose sum is σ = 3452220. Its totient is φ = 3442080.

The previous prime is 3447139. The next prime is 3447203. The reversal of 3447149 is 9417443.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9417443 = 7 ⋅1345349.

It can be written as a sum of positive squares in 2 ways, for example, as 3204100 + 243049 = 1790^2 + 493^2 .

It is a cyclic number.

It is not a de Polignac number, because 3447149 - 2¹⁶ = 3381613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3447139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322 + ... + 2939.

It is an arithmetic number, because the mean of its divisors is an integer number (863055).

Almost surely, 2^3447149 is an apocalyptic number.

It is an amenable number.

3447149 is a deficient number, since it is larger than the sum of its proper divisors (5071).

3447149 is an equidigital number, since it uses as much as digits as its factorization.

3447149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070.

The product of its digits is 12096, while the sum is 32.

The square root of 3447149 is about 1856.6499400803. The cubic root of 3447149 is about 151.0613466506.

The spelling of 3447149 in words is "three million, four hundred forty-seven thousand, one hundred forty-nine".