99415663 has 2 divisors, whose sum is σ = 99415664. Its totient is φ = 99415662.

The previous prime is 99415639. The next prime is 99415681. The reversal of 99415663 is 36651499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99415663 - 2²⁵ = 65861231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99415963) 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, 49707831 + 49707832.

It is an arithmetic number, because the mean of its divisors is an integer number (49707832).

Almost surely, 2^99415663 is an apocalyptic number.

99415663 is a deficient number, since it is larger than the sum of its proper divisors (1).

99415663 is an equidigital number, since it uses as much as digits as its factorization.

99415663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 43.

The square root of 99415663 is about 9970.7403436254. The cubic root of 99415663 is about 463.2530326250.

The spelling of 99415663 in words is "ninety-nine million, four hundred fifteen thousand, six hundred sixty-three".