97581367 has 4 divisors (see below), whose sum is σ = 105087640. Its totient is φ = 90075096.

The previous prime is 97581349. The next prime is 97581391. The reversal of 97581367 is 76318579.

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 97581367 - 2²³ = 89192759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97581667) 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, 3753117 + ... + 3753142.

It is an arithmetic number, because the mean of its divisors is an integer number (26271910).

Almost surely, 2^97581367 is an apocalyptic number.

97581367 is a deficient number, since it is larger than the sum of its proper divisors (7506273).

97581367 is a wasteful number, since it uses less digits than its factorization.

97581367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7506272.

The product of its digits is 317520, while the sum is 46.

The square root of 97581367 is about 9878.3281480218. The cubic root of 97581367 is about 460.3862021306.

The spelling of 97581367 in words is "ninety-seven million, five hundred eighty-one thousand, three hundred sixty-seven".