99623311 has 2 divisors, whose sum is σ = 99623312. Its totient is φ = 99623310.

The previous prime is 99623299. The next prime is 99623347. The reversal of 99623311 is 11332699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99623311 - 2⁹ = 99622799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99623371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49811655 + 49811656.

It is an arithmetic number, because the mean of its divisors is an integer number (49811656).

Almost surely, 2^99623311 is an apocalyptic number.

99623311 is a deficient number, since it is larger than the sum of its proper divisors (1).

99623311 is an equidigital number, since it uses as much as digits as its factorization.

99623311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 34.

The square root of 99623311 is about 9981.1477796895. The cubic root of 99623311 is about 463.5753382113.

The spelling of 99623311 in words is "ninety-nine million, six hundred twenty-three thousand, three hundred eleven".