97031357 has 2 divisors, whose sum is σ = 97031358. Its totient is φ = 97031356.

The previous prime is 97031339. The next prime is 97031383. The reversal of 97031357 is 75313079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66406201 + 30625156 = 8149^2 + 5534^2 .

It is a cyclic number.

It is not a de Polignac number, because 97031357 - 2⁶ = 97031293 is a prime.

It is a super-2 number, since 2×97031357² = 18830168482522898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97031317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48515678 + 48515679.

It is an arithmetic number, because the mean of its divisors is an integer number (48515679).

Almost surely, 2^97031357 is an apocalyptic number.

It is an amenable number.

97031357 is a deficient number, since it is larger than the sum of its proper divisors (1).

97031357 is an equidigital number, since it uses as much as digits as its factorization.

97031357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 97031357 is about 9850.4495836485. The cubic root of 97031357 is about 459.5195945518.

The spelling of 97031357 in words is "ninety-seven million, thirty-one thousand, three hundred fifty-seven".