3747865 has 16 divisors (see below), whose sum is σ = 4971456. Its totient is φ = 2689600.

The previous prime is 3747847. The next prime is 3747899. The reversal of 3747865 is 5687473.

It is not a de Polignac number, because 3747865 - 2⁵ = 3747833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4155 + ... + 4975.

It is an arithmetic number, because the mean of its divisors is an integer number (310716).

Almost surely, 2^3747865 is an apocalyptic number.

It is an amenable number.

3747865 is a deficient number, since it is larger than the sum of its proper divisors (1223591).

3747865 is a wasteful number, since it uses less digits than its factorization.

3747865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920.

The product of its digits is 141120, while the sum is 40.

The square root of 3747865 is about 1935.9403399898. The cubic root of 3747865 is about 155.3321355165.

The spelling of 3747865 in words is "three million, seven hundred forty-seven thousand, eight hundred sixty-five".