97031599 has 4 divisors (see below), whose sum is σ = 110893264. Its totient is φ = 83169936.

The previous prime is 97031587. The next prime is 97031603. The reversal of 97031599 is 99513079.

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 97031599 - 2⁷ = 97031471 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 (97031579) 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, 6930822 + ... + 6930835.

It is an arithmetic number, because the mean of its divisors is an integer number (27723316).

Almost surely, 2^97031599 is an apocalyptic number.

97031599 is a deficient number, since it is larger than the sum of its proper divisors (13861665).

97031599 is a wasteful number, since it uses less digits than its factorization.

97031599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13861664.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 97031599 is about 9850.4618673441. The cubic root of 97031599 is about 459.5199765715.

The spelling of 97031599 in words is "ninety-seven million, thirty-one thousand, five hundred ninety-nine".