97567331 has 4 divisors (see below), whose sum is σ = 99947064. Its totient is φ = 95187600.

The previous prime is 97567321. The next prime is 97567333. The reversal of 97567331 is 13376579.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97567331 - 2¹⁰ = 97566307 is a prime.

It is a super-2 number, since 2×97567331² = 19038768156927122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2379691 = 97567331 / (9 + 7 + 5 + 6 + 7 + 3 + 3 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97567333) 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, 1189805 + ... + 1189886.

It is an arithmetic number, because the mean of its divisors is an integer number (24986766).

Almost surely, 2^97567331 is an apocalyptic number.

97567331 is a deficient number, since it is larger than the sum of its proper divisors (2379733).

97567331 is a wasteful number, since it uses less digits than its factorization.

97567331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379732.

The product of its digits is 119070, while the sum is 41.

The square root of 97567331 is about 9877.6176783676. The cubic root of 97567331 is about 460.3641272517.

The spelling of 97567331 in words is "ninety-seven million, five hundred sixty-seven thousand, three hundred thirty-one".