3685872 has 40 divisors (see below), whose sum is σ = 10084176. Its totient is φ = 1156096.

The previous prime is 3685861. The next prime is 3685879. The reversal of 3685872 is 2785863.

It is a self number, because there is not a number n which added to its sum of digits gives 3685872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1443 + ... + 3074.

Almost surely, 2^3685872 is an apocalyptic number.

It is an amenable number.

3685872 is an abundant number, since it is smaller than the sum of its proper divisors (6398304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3685872 is a wasteful number, since it uses less digits than its factorization.

3685872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545 (or 4539 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 3685872 is about 1919.8624950761. The cubic root of 3685872 is about 154.4709259186.

Subtracting from 3685872 its reverse (2785863), we obtain a palindrome (900009).

The spelling of 3685872 in words is "three million, six hundred eighty-five thousand, eight hundred seventy-two".