3749217 has 4 divisors (see below), whose sum is σ = 4998960. Its totient is φ = 2499476.

The previous prime is 3749191. The next prime is 3749219. The reversal of 3749217 is 7129473.

3749217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3749217 - 2⁶ = 3749153 is a prime.

It is a super-2 number, since 2×3749217² = 28113256226178, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3749219) 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 3 ways as a sum of consecutive naturals, for example, 624867 + ... + 624872.

It is an arithmetic number, because the mean of its divisors is an integer number (1249740).

Almost surely, 2^3749217 is an apocalyptic number.

It is an amenable number.

3749217 is a deficient number, since it is larger than the sum of its proper divisors (1249743).

3749217 is a wasteful number, since it uses less digits than its factorization.

3749217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249742.

The product of its digits is 10584, while the sum is 33.

The square root of 3749217 is about 1936.2894928187. The cubic root of 3749217 is about 155.3508113759.

It can be divided in two parts, 374 and 9217, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 3749217 in words is "three million, seven hundred forty-nine thousand, two hundred seventeen".