31794725 has 12 divisors (see below), whose sum is σ = 40073700. Its totient is φ = 25017600.

The previous prime is 31794713. The next prime is 31794751. The reversal of 31794725 is 52749713.

It can be written as a sum of positive squares in 6 ways, for example, as 1136356 + 30658369 = 1066^2 + 5537^2 .

It is not a de Polignac number, because 31794725 - 2¹⁸ = 31532581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8900 + ... + 11949.

It is an arithmetic number, because the mean of its divisors is an integer number (3339475).

Almost surely, 2^31794725 is an apocalyptic number.

It is an amenable number.

31794725 is a deficient number, since it is larger than the sum of its proper divisors (8278975).

31794725 is a wasteful number, since it uses less digits than its factorization.

31794725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20920 (or 20915 counting only the distinct ones).

The product of its digits is 52920, while the sum is 38.

The square root of 31794725 is about 5638.6811401249. The cubic root of 31794725 is about 316.7998916192.

The spelling of 31794725 in words is "thirty-one million, seven hundred ninety-four thousand, seven hundred twenty-five".