97897023 has 24 divisors (see below), whose sum is σ = 162708000. Its totient is φ = 55560384.

The previous prime is 97897021. The next prime is 97897031. The reversal of 97897023 is 32079879.

It is not a de Polignac number, because 97897023 - 2¹ = 97897021 is a prime.

It is a super-2 number, since 2×97897023² = 19167654224525058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97897023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97897021) 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 23 ways as a sum of consecutive naturals, for example, 4173 + ... + 14601.

It is an arithmetic number, because the mean of its divisors is an integer number (6779500).

Almost surely, 2^97897023 is an apocalyptic number.

97897023 is the 6258-th heptagonal number.

97897023 is a deficient number, since it is larger than the sum of its proper divisors (64810977).

97897023 is a wasteful number, since it uses less digits than its factorization.

97897023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10591 (or 10588 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 97897023 is about 9894.2924456476. The cubic root of 97897023 is about 460.8820865907.

The spelling of 97897023 in words is "ninety-seven million, eight hundred ninety-seven thousand, twenty-three".