99573931 has 2 divisors, whose sum is σ = 99573932. Its totient is φ = 99573930.

The previous prime is 99573863. The next prime is 99573937. The reversal of 99573931 is 13937599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99573931 - 2¹¹ = 99571883 is a prime.

It is a super-2 number, since 2×99573931² = 19829935469585522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99573937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49786965 + 49786966.

It is an arithmetic number, because the mean of its divisors is an integer number (49786966).

Almost surely, 2^99573931 is an apocalyptic number.

99573931 is a deficient number, since it is larger than the sum of its proper divisors (1).

99573931 is an equidigital number, since it uses as much as digits as its factorization.

99573931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 229635, while the sum is 46.

The square root of 99573931 is about 9978.6738096803. The cubic root of 99573931 is about 463.4987325348.

The spelling of 99573931 in words is "ninety-nine million, five hundred seventy-three thousand, nine hundred thirty-one".