31796316 has 18 divisors (see below), whose sum is σ = 80374112. Its totient is φ = 10598760.

The previous prime is 31796293. The next prime is 31796333. The reversal of 31796316 is 61369713.

31796316 is a `hidden beast` number, since 3 + 17 + 9 + 631 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×31796316² = 2022011422343712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 883231 = 31796316 / (3 + 1 + 7 + 9 + 6 + 3 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 441580 + ... + 441651.

Almost surely, 2^31796316 is an apocalyptic number.

31796316 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31796316 is an abundant number, since it is smaller than the sum of its proper divisors (48577796).

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

31796316 is a wasteful number, since it uses less digits than its factorization.

31796316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883241 (or 883236 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 31796316 is about 5638.8222174493. The cubic root of 31796316 is about 316.8051757266.

The spelling of 31796316 in words is "thirty-one million, seven hundred ninety-six thousand, three hundred sixteen".