97051997 has 24 divisors (see below), whose sum is σ = 120263616. Its totient is φ = 77820288.

The previous prime is 97051949. The next prime is 97052017. The reversal of 97051997 is 79915079.

It is a happy number.

It is not a de Polignac number, because 97051997 - 2¹⁴ = 97035613 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 (97051907) 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, 218858 + ... + 219300.

It is an arithmetic number, because the mean of its divisors is an integer number (5010984).

Almost surely, 2^97051997 is an apocalyptic number.

It is an amenable number.

97051997 is a deficient number, since it is larger than the sum of its proper divisors (23211619).

97051997 is a wasteful number, since it uses less digits than its factorization.

97051997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 178605, while the sum is 47.

The square root of 97051997 is about 9851.4971958581. The cubic root of 97051997 is about 459.5521744391.

The spelling of 97051997 in words is "ninety-seven million, fifty-one thousand, nine hundred ninety-seven".