3872655 has 24 divisors (see below), whose sum is σ = 6879600. Its totient is φ = 2014080.

The previous prime is 3872647. The next prime is 3872669. The reversal of 3872655 is 5562783.

It is not a de Polignac number, because 3872655 - 2³ = 3872647 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 796 + ... + 2894.

It is an arithmetic number, because the mean of its divisors is an integer number (286650).

Almost surely, 2^3872655 is an apocalyptic number.

3872655 is a deficient number, since it is larger than the sum of its proper divisors (3006945).

3872655 is a wasteful number, since it uses less digits than its factorization.

3872655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151 (or 2148 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 3872655 is about 1967.9062477669. The cubic root of 3872655 is about 157.0373421933.

It can be divided in two parts, 38726 and 55, that added together give a triangular number (38781 = T₂₇₈).

The spelling of 3872655 in words is "three million, eight hundred seventy-two thousand, six hundred fifty-five".