316732397 has 2 divisors, whose sum is σ = 316732398. Its totient is φ = 316732396.

The previous prime is 316732393. The next prime is 316732411. The reversal of 316732397 is 793237613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310675876 + 6056521 = 17626^2 + 2461^2 .

It is a cyclic number.

It is not a de Polignac number, because 316732397 - 2² = 316732393 is a prime.

It is a super-2 number, since 2×316732397² = 200638822618731218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316732391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158366198 + 158366199.

It is an arithmetic number, because the mean of its divisors is an integer number (158366199).

Almost surely, 2^316732397 is an apocalyptic number.

It is an amenable number.

316732397 is a deficient number, since it is larger than the sum of its proper divisors (1).

316732397 is an equidigital number, since it uses as much as digits as its factorization.

316732397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 41.

The square root of 316732397 is about 17796.9771871518. The cubic root of 316732397 is about 681.6542746243.

The spelling of 316732397 in words is "three hundred sixteen million, seven hundred thirty-two thousand, three hundred ninety-seven".