97657673 has 4 divisors (see below), whose sum is σ = 103402260. Its totient is φ = 91913088.

The previous prime is 97657669. The next prime is 97657697. The reversal of 97657673 is 37675679.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87366409 + 10291264 = 9347^2 + 3208^2 .

It is a cyclic number.

It is not a de Polignac number, because 97657673 - 2² = 97657669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (97650673) 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, 2872268 + ... + 2872301.

It is an arithmetic number, because the mean of its divisors is an integer number (25850565).

Almost surely, 2^97657673 is an apocalyptic number.

It is an amenable number.

97657673 is a deficient number, since it is larger than the sum of its proper divisors (5744587).

97657673 is a wasteful number, since it uses less digits than its factorization.

97657673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744586.

The product of its digits is 1666980, while the sum is 50.

The square root of 97657673 is about 9882.1896865017. The cubic root of 97657673 is about 460.5061740666.

The spelling of 97657673 in words is "ninety-seven million, six hundred fifty-seven thousand, six hundred seventy-three".