99512969 has 2 divisors, whose sum is σ = 99512970. Its totient is φ = 99512968.

The previous prime is 99512953. The next prime is 99512989. The reversal of 99512969 is 96921599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64561225 + 34951744 = 8035^2 + 5912^2 .

It is an emirp because it is prime and its reverse (96921599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99512969 - 2⁴ = 99512953 is a prime.

It is a super-2 number, since 2×99512969² = 19805661998389922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99512989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49756484 + 49756485.

It is an arithmetic number, because the mean of its divisors is an integer number (49756485).

Almost surely, 2^99512969 is an apocalyptic number.

It is an amenable number.

99512969 is a deficient number, since it is larger than the sum of its proper divisors (1).

99512969 is an equidigital number, since it uses as much as digits as its factorization.

99512969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 393660, while the sum is 50.

The square root of 99512969 is about 9975.6187276780. The cubic root of 99512969 is about 463.4041241778.

The spelling of 99512969 in words is "ninety-nine million, five hundred twelve thousand, nine hundred sixty-nine".