97259231 has 4 divisors (see below), whose sum is σ = 97348512. Its totient is φ = 97169952.

The previous prime is 97259189. The next prime is 97259269. The reversal of 97259231 is 13295279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13295279 = 67 ⋅198437.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97259231 is a prime.

It is a super-2 number, since 2×97259231² = 18918716029422722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97259131) 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, 42986 + ... + 45191.

It is an arithmetic number, because the mean of its divisors is an integer number (24337128).

Almost surely, 2^97259231 is an apocalyptic number.

97259231 is a deficient number, since it is larger than the sum of its proper divisors (89281).

97259231 is a wasteful number, since it uses less digits than its factorization.

97259231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89280.

The product of its digits is 34020, while the sum is 38.

The square root of 97259231 is about 9862.0094808310. The cubic root of 97259231 is about 459.8790340399.

The spelling of 97259231 in words is "ninety-seven million, two hundred fifty-nine thousand, two hundred thirty-one".