99475631 has 2 divisors, whose sum is σ = 99475632. Its totient is φ = 99475630.

The previous prime is 99475591. The next prime is 99475639. The reversal of 99475631 is 13657499.

It is a strong prime.

It is an emirp because it is prime and its reverse (13657499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99475631 - 2¹⁴ = 99459247 is a prime.

It is a super-2 number, since 2×99475631² = 19790802325696322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99475639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49737815 + 49737816.

It is an arithmetic number, because the mean of its divisors is an integer number (49737816).

Almost surely, 2^99475631 is an apocalyptic number.

99475631 is a deficient number, since it is larger than the sum of its proper divisors (1).

99475631 is an equidigital number, since it uses as much as digits as its factorization.

99475631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 44.

The square root of 99475631 is about 9973.7470892338. The cubic root of 99475631 is about 463.3461593790.

The spelling of 99475631 in words is "ninety-nine million, four hundred seventy-five thousand, six hundred thirty-one".