31793396 has 12 divisors (see below), whose sum is σ = 57557220. Its totient is φ = 15348480.

The previous prime is 31793371. The next prime is 31793407. The reversal of 31793396 is 69339713.

It can be written as a sum of positive squares in 2 ways, for example, as 15713296 + 16080100 = 3964^2 + 4010^2 .

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, 136925 + ... + 137156.

It is an arithmetic number, because the mean of its divisors is an integer number (4796435).

Almost surely, 2^31793396 is an apocalyptic number.

It is an amenable number.

31793396 is a deficient number, since it is larger than the sum of its proper divisors (25763824).

31793396 is a wasteful number, since it uses less digits than its factorization.

31793396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274114 (or 274112 counting only the distinct ones).

The product of its digits is 91854, while the sum is 41.

The square root of 31793396 is about 5638.5632921871. The cubic root of 31793396 is about 316.7954775440.

The spelling of 31793396 in words is "thirty-one million, seven hundred ninety-three thousand, three hundred ninety-six".