99764663 has 2 divisors, whose sum is σ = 99764664. Its totient is φ = 99764662.

The previous prime is 99764659. The next prime is 99764671. The reversal of 99764663 is 36646799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99764663 - 2² = 99764659 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99760663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49882331 + 49882332.

It is an arithmetic number, because the mean of its divisors is an integer number (49882332).

Almost surely, 2^99764663 is an apocalyptic number.

99764663 is a deficient number, since it is larger than the sum of its proper divisors (1).

99764663 is an equidigital number, since it uses as much as digits as its factorization.

99764663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 50.

The square root of 99764663 is about 9988.2262189039. The cubic root of 99764663 is about 463.7944848263.

The spelling of 99764663 in words is "ninety-nine million, seven hundred sixty-four thousand, six hundred sixty-three".