97539357 has 4 divisors (see below), whose sum is σ = 130052480. Its totient is φ = 65026236.

The previous prime is 97539347. The next prime is 97539373. The reversal of 97539357 is 75393579.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75393579 = 3 ⋅25131193.

It is not a de Polignac number, because 97539357 - 2⁴ = 97539341 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 (97539347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16256557 + ... + 16256562.

It is an arithmetic number, because the mean of its divisors is an integer number (32513120).

Almost surely, 2^97539357 is an apocalyptic number.

It is an amenable number.

97539357 is a deficient number, since it is larger than the sum of its proper divisors (32513123).

97539357 is a wasteful number, since it uses less digits than its factorization.

97539357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32513122.

The product of its digits is 893025, while the sum is 48.

The square root of 97539357 is about 9876.2015471536. The cubic root of 97539357 is about 460.3201253064.

It can be divided in two parts, 9753 and 9357, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 97539357 in words is "ninety-seven million, five hundred thirty-nine thousand, three hundred fifty-seven".