97957837 has 4 divisors (see below), whose sum is σ = 98023680. Its totient is φ = 97891996.

The previous prime is 97957829. The next prime is 97957843. The reversal of 97957837 is 73875979.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97957837 - 2³ = 97957829 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 (97957807) 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, 30637 + ... + 33682.

It is an arithmetic number, because the mean of its divisors is an integer number (24505920).

Almost surely, 2^97957837 is an apocalyptic number.

It is an amenable number.

97957837 is a deficient number, since it is larger than the sum of its proper divisors (65843).

97957837 is a wasteful number, since it uses less digits than its factorization.

97957837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65842.

The product of its digits is 3333960, while the sum is 55.

The square root of 97957837 is about 9897.3651544237. The cubic root of 97957837 is about 460.9775007331.

The spelling of 97957837 in words is "ninety-seven million, nine hundred fifty-seven thousand, eight hundred thirty-seven".