3899265 has 16 divisors (see below), whose sum is σ = 6276096. Its totient is φ = 2067200.

The previous prime is 3899243. The next prime is 3899279. The reversal of 3899265 is 5629983.

It is not a de Polignac number, because 3899265 - 2⁶ = 3899201 is a prime.

It is an Ulam 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, 2185 + ... + 3545.

It is an arithmetic number, because the mean of its divisors is an integer number (392256).

Almost surely, 2^3899265 is an apocalyptic number.

It is an amenable number.

3899265 is a deficient number, since it is larger than the sum of its proper divisors (2376831).

3899265 is a wasteful number, since it uses less digits than its factorization.

3899265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560.

The product of its digits is 116640, while the sum is 42.

The square root of 3899265 is about 1974.6556661859. The cubic root of 3899265 is about 157.3962027105.

Subtracting from 3899265 its product of digits (116640), we obtain a triangular number (3782625 = T₂₇₅₀).

The spelling of 3899265 in words is "three million, eight hundred ninety-nine thousand, two hundred sixty-five".