97235531 has 4 divisors (see below), whose sum is σ = 97832232. Its totient is φ = 96638832.

The previous prime is 97235507. The next prime is 97235533. The reversal of 97235531 is 13553279.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13553279 = 23 ⋅589273.

It is a cyclic number.

It is not a de Polignac number, because 97235531 - 2¹⁴ = 97219147 is a prime.

It is a super-2 number, since 2×97235531² = 18909496977703922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97235491 and 97235500.

It is not an unprimeable number, because it can be changed into a prime (97235533) 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, 298106 + ... + 298431.

It is an arithmetic number, because the mean of its divisors is an integer number (24458058).

Almost surely, 2^97235531 is an apocalyptic number.

97235531 is a deficient number, since it is larger than the sum of its proper divisors (596701).

97235531 is a wasteful number, since it uses less digits than its factorization.

97235531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596700.

The product of its digits is 28350, while the sum is 35.

The square root of 97235531 is about 9860.8078269481. The cubic root of 97235531 is about 459.8416767684.

The spelling of 97235531 in words is "ninety-seven million, two hundred thirty-five thousand, five hundred thirty-one".