97942057 has 2 divisors, whose sum is σ = 97942058. Its totient is φ = 97942056.

The previous prime is 97942001. The next prime is 97942063. The reversal of 97942057 is 75024979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58201641 + 39740416 = 7629^2 + 6304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97942057 is a prime.

It is not a weakly prime, because it can be changed into another prime (91942057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48971028 + 48971029.

It is an arithmetic number, because the mean of its divisors is an integer number (48971029).

Almost surely, 2^97942057 is an apocalyptic number.

It is an amenable number.

97942057 is a deficient number, since it is larger than the sum of its proper divisors (1).

97942057 is an equidigital number, since it uses as much as digits as its factorization.

97942057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 97942057 is about 9896.5679404529. The cubic root of 97942057 is about 460.9527464925.

The spelling of 97942057 in words is "ninety-seven million, nine hundred forty-two thousand, fifty-seven".