97557079 has 2 divisors, whose sum is σ = 97557080. Its totient is φ = 97557078.

The previous prime is 97557043. The next prime is 97557091. The reversal of 97557079 is 97075579.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97557079 - 2²¹ = 95459927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97557029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48778539 + 48778540.

It is an arithmetic number, because the mean of its divisors is an integer number (48778540).

Almost surely, 2^97557079 is an apocalyptic number.

97557079 is a deficient number, since it is larger than the sum of its proper divisors (1).

97557079 is an equidigital number, since it uses as much as digits as its factorization.

97557079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 694575, while the sum is 49.

The square root of 97557079 is about 9877.0987136912. The cubic root of 97557079 is about 460.3480022561.

The spelling of 97557079 in words is "ninety-seven million, five hundred fifty-seven thousand, seventy-nine".