3721864 has 16 divisors (see below), whose sum is σ = 7030800. Its totient is φ = 1846992.

The previous prime is 3721859. The next prime is 3721873. The reversal of 3721864 is 4681273.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562 + ... + 2785.

It is an arithmetic number, because the mean of its divisors is an integer number (439425).

Almost surely, 2^3721864 is an apocalyptic number.

It is an amenable number.

3721864 is a deficient number, since it is larger than the sum of its proper divisors (3308936).

3721864 is a wasteful number, since it uses less digits than its factorization.

3721864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492 (or 3488 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 3721864 is about 1929.2133111712. The cubic root of 3721864 is about 154.9720934845.

The spelling of 3721864 in words is "three million, seven hundred twenty-one thousand, eight hundred sixty-four".