99799963 has 2 divisors, whose sum is σ = 99799964. Its totient is φ = 99799962.

The previous prime is 99799957. The next prime is 99799981. The reversal of 99799963 is 36999799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99799963 - 2⁹ = 99799451 is a prime.

It is a super-2 number, since 2×99799963² = 19920065229602738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99799993) 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, 49899981 + 49899982.

It is an arithmetic number, because the mean of its divisors is an integer number (49899982).

Almost surely, 2^99799963 is an apocalyptic number.

99799963 is a deficient number, since it is larger than the sum of its proper divisors (1).

99799963 is an equidigital number, since it uses as much as digits as its factorization.

99799963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7440174, while the sum is 61.

The square root of 99799963 is about 9989.9931431408. The cubic root of 99799963 is about 463.8491802606.

The spelling of 99799963 in words is "ninety-nine million, seven hundred ninety-nine thousand, nine hundred sixty-three".