97523571 has 4 divisors (see below), whose sum is σ = 130031432. Its totient is φ = 65015712.

The previous prime is 97523557. The next prime is 97523581. The reversal of 97523571 is 17532579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17532579 = 3 ⋅5844193.

It is not a de Polignac number, because 97523571 - 2⁵ = 97523539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97523581) 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, 16253926 + ... + 16253931.

It is an arithmetic number, because the mean of its divisors is an integer number (32507858).

Almost surely, 2^97523571 is an apocalyptic number.

97523571 is a deficient number, since it is larger than the sum of its proper divisors (32507861).

97523571 is a wasteful number, since it uses less digits than its factorization.

97523571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32507860.

The product of its digits is 66150, while the sum is 39.

The square root of 97523571 is about 9875.4023209184. The cubic root of 97523571 is about 460.2952908677.

The spelling of 97523571 in words is "ninety-seven million, five hundred twenty-three thousand, five hundred seventy-one".