97123557 has 8 divisors (see below), whose sum is σ = 132998176. Its totient is φ = 62998992.

The previous prime is 97123513. The next prime is 97123571. The reversal of 97123557 is 75532179.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97123557 - 2⁶ = 97123493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97123577) 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 in 7 ways as a sum of consecutive naturals, for example, 437383 + ... + 437604.

It is an arithmetic number, because the mean of its divisors is an integer number (16624772).

Almost surely, 2^97123557 is an apocalyptic number.

It is an amenable number.

97123557 is a deficient number, since it is larger than the sum of its proper divisors (35874619).

97123557 is a wasteful number, since it uses less digits than its factorization.

97123557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875027.

The product of its digits is 66150, while the sum is 39.

The square root of 97123557 is about 9855.1284618720. The cubic root of 97123557 is about 459.6650949194.

The spelling of 97123557 in words is "ninety-seven million, one hundred twenty-three thousand, five hundred fifty-seven".