99475889 has 2 divisors, whose sum is σ = 99475890. Its totient is φ = 99475888.

The previous prime is 99475853. The next prime is 99475913. The reversal of 99475889 is 98857499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91680625 + 7795264 = 9575^2 + 2792^2 .

It is a cyclic number.

It is not a de Polignac number, because 99475889 - 2¹² = 99471793 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99415889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49737944 + 49737945.

It is an arithmetic number, because the mean of its divisors is an integer number (49737945).

Almost surely, 2^99475889 is an apocalyptic number.

It is an amenable number.

99475889 is a deficient number, since it is larger than the sum of its proper divisors (1).

99475889 is an equidigital number, since it uses as much as digits as its factorization.

99475889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 59.

The square root of 99475889 is about 9973.7600231808. The cubic root of 99475889 is about 463.3465599569.

The spelling of 99475889 in words is "ninety-nine million, four hundred seventy-five thousand, eight hundred eighty-nine".