99599663 has 2 divisors, whose sum is σ = 99599664. Its totient is φ = 99599662.

The previous prime is 99599629. The next prime is 99599677. The reversal of 99599663 is 36699599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99599663 - 2¹⁴ = 99583279 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 99599599 and 99599608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99599603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49799831 + 49799832.

It is an arithmetic number, because the mean of its divisors is an integer number (49799832).

Almost surely, 2^99599663 is an apocalyptic number.

99599663 is a deficient number, since it is larger than the sum of its proper divisors (1).

99599663 is an equidigital number, since it uses as much as digits as its factorization.

99599663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3542940, while the sum is 56.

The square root of 99599663 is about 9979.9630760840. The cubic root of 99599663 is about 463.5386550394.

The spelling of 99599663 in words is "ninety-nine million, five hundred ninety-nine thousand, six hundred sixty-three".