97116257 has 8 divisors (see below), whose sum is σ = 117518976. Its totient is φ = 78345792.

The previous prime is 97116233. The next prime is 97116259. The reversal of 97116257 is 75261179.

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

It is not a de Polignac number, because 97116257 - 2¹⁶ = 97050721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97116257.

It is not an unprimeable number, because it can be changed into a prime (97116259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407933 + ... + 408170.

It is an arithmetic number, because the mean of its divisors is an integer number (14689872).

Almost surely, 2^97116257 is an apocalyptic number.

It is an amenable number.

97116257 is a deficient number, since it is larger than the sum of its proper divisors (20402719).

97116257 is a wasteful number, since it uses less digits than its factorization.

97116257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816127.

The product of its digits is 26460, while the sum is 38.

The square root of 97116257 is about 9854.7580893698. The cubic root of 97116257 is about 459.6535781828.

The spelling of 97116257 in words is "ninety-seven million, one hundred sixteen thousand, two hundred fifty-seven".