97165723 has 4 divisors (see below), whose sum is σ = 97259400. Its totient is φ = 97072048.

The previous prime is 97165699. The next prime is 97165729. The reversal of 97165723 is 32756179.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97165723 - 2²⁵ = 63611291 is a prime.

It is a super-2 number, since 2×97165723² = 18882355452225458, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97165729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45265 + ... + 47362.

It is an arithmetic number, because the mean of its divisors is an integer number (24314850).

Almost surely, 2^97165723 is an apocalyptic number.

97165723 is a deficient number, since it is larger than the sum of its proper divisors (93677).

97165723 is a wasteful number, since it uses less digits than its factorization.

97165723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93676.

The product of its digits is 79380, while the sum is 40.

The square root of 97165723 is about 9857.2675219860. The cubic root of 97165723 is about 459.7316061920.

The spelling of 97165723 in words is "ninety-seven million, one hundred sixty-five thousand, seven hundred twenty-three".