99974231 has 8 divisors (see below), whose sum is σ = 115014144. Its totient is φ = 85123800.

The previous prime is 99974227. The next prime is 99974239. The reversal of 99974231 is 13247999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99974231 - 2² = 99974227 is a prime.

It is a super-2 number, since 2×99974231² = 19989693728082722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99974239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46235 + ... + 48348.

It is an arithmetic number, because the mean of its divisors is an integer number (14376768).

Almost surely, 2^99974231 is an apocalyptic number.

99974231 is a deficient number, since it is larger than the sum of its proper divisors (15039913).

99974231 is a wasteful number, since it uses less digits than its factorization.

99974231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94741.

The product of its digits is 122472, while the sum is 44.

The square root of 99974231 is about 9998.7114669841. The cubic root of 99974231 is about 464.1190102352.

The spelling of 99974231 in words is "ninety-nine million, nine hundred seventy-four thousand, two hundred thirty-one".