99471331 has 2 divisors, whose sum is σ = 99471332. Its totient is φ = 99471330.

The previous prime is 99471299. The next prime is 99471347. The reversal of 99471331 is 13317499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99471331 - 2⁵ = 99471299 is a prime.

It is a super-2 number, since 2×99471331² = 19789091381823122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99471391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49735665 + 49735666.

It is an arithmetic number, because the mean of its divisors is an integer number (49735666).

Almost surely, 2^99471331 is an apocalyptic number.

99471331 is a deficient number, since it is larger than the sum of its proper divisors (1).

99471331 is an equidigital number, since it uses as much as digits as its factorization.

99471331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 37.

The square root of 99471331 is about 9973.5315209809. The cubic root of 99471331 is about 463.3394829794.

The spelling of 99471331 in words is "ninety-nine million, four hundred seventy-one thousand, three hundred thirty-one".