97516239 has 4 divisors (see below), whose sum is σ = 130021656. Its totient is φ = 65010824.

The previous prime is 97516231. The next prime is 97516259. The reversal of 97516239 is 93261579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93261579 = 3 ⋅31087193.

It is a cyclic number.

It is not a de Polignac number, because 97516239 - 2³ = 97516231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97516239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97516231) 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, 16252704 + ... + 16252709.

It is an arithmetic number, because the mean of its divisors is an integer number (32505414).

Almost surely, 2^97516239 is an apocalyptic number.

97516239 is a deficient number, since it is larger than the sum of its proper divisors (32505417).

97516239 is a wasteful number, since it uses less digits than its factorization.

97516239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32505416.

The product of its digits is 102060, while the sum is 42.

The square root of 97516239 is about 9875.0310885587. The cubic root of 97516239 is about 460.2837552987.

The spelling of 97516239 in words is "ninety-seven million, five hundred sixteen thousand, two hundred thirty-nine".