31796797 has 4 divisors (see below), whose sum is σ = 31808700. Its totient is φ = 31784896.

The previous prime is 31796761. The next prime is 31796803. The reversal of 31796797 is 79769713.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3345241 + 28451556 = 1829^2 + 5334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31796797 is a prime.

It is a super-2 number, since 2×31796797² = 2022072598918418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31796797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31796707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123 + ... + 7975.

It is an arithmetic number, because the mean of its divisors is an integer number (7952175).

Almost surely, 2^31796797 is an apocalyptic number.

It is an amenable number.

31796797 is a deficient number, since it is larger than the sum of its proper divisors (11903).

31796797 is an equidigital number, since it uses as much as digits as its factorization.

31796797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11902.

The product of its digits is 500094, while the sum is 49.

The square root of 31796797 is about 5638.8648680386. The cubic root of 31796797 is about 316.8067732127.

The spelling of 31796797 in words is "thirty-one million, seven hundred ninety-six thousand, seven hundred ninety-seven".