97257897927 has 24 divisors (see below), whose sum is σ = 147913334400. Its totient is φ = 61411158288.

The previous prime is 97257897907. The next prime is 97257897929. The reversal of 97257897927 is 72979875279.

It is a happy number.

It is not a de Polignac number, because 97257897927 - 2¹¹ = 97257895879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97257897929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 661518 + ... + 795060.

It is an arithmetic number, because the mean of its divisors is an integer number (6163055600).

Almost surely, 2^97257897927 is an apocalyptic number.

97257897927 is a deficient number, since it is larger than the sum of its proper divisors (50655436473).

97257897927 is a wasteful number, since it uses less digits than its factorization.

97257897927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137827 (or 137824 counting only the distinct ones).

The product of its digits is 280052640, while the sum is 72.

The spelling of 97257897927 in words is "ninety-seven billion, two hundred fifty-seven million, eight hundred ninety-seven thousand, nine hundred twenty-seven".