31874036 has 12 divisors (see below), whose sum is σ = 55819428. Its totient is φ = 15925632.

The previous prime is 31873999. The next prime is 31874047. The reversal of 31874036 is 63047813.

It can be written as a sum of positive squares in 2 ways, for example, as 23136100 + 8737936 = 4810^2 + 2956^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31873993 and 31874011.

It is a congruent number.

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, 8300 + ... + 11516.

It is an arithmetic number, because the mean of its divisors is an integer number (4651619).

Almost surely, 2^31874036 is an apocalyptic number.

It is an amenable number.

31874036 is a deficient number, since it is larger than the sum of its proper divisors (23945392).

31874036 is a wasteful number, since it uses less digits than its factorization.

31874036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5698 (or 5696 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 31874036 is about 5645.7095213976. The cubic root of 31874036 is about 317.0630888773.

The spelling of 31874036 in words is "thirty-one million, eight hundred seventy-four thousand, thirty-six".