99023997 has 16 divisors (see below), whose sum is σ = 140061312. Its totient is φ = 62016000.

The previous prime is 99023987. The next prime is 99023999. The reversal of 99023997 is 79932099.

It is a happy number.

It is not a de Polignac number, because 99023997 - 2⁶ = 99023933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99023999) 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 in 15 ways as a sum of consecutive naturals, for example, 31497 + ... + 34497.

It is an arithmetic number, because the mean of its divisors is an integer number (8753832).

Almost surely, 2^99023997 is an apocalyptic number.

It is an amenable number.

99023997 is a deficient number, since it is larger than the sum of its proper divisors (41037315).

99023997 is a wasteful number, since it uses less digits than its factorization.

99023997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668.

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 99023997 is about 9951.0801926223. The cubic root of 99023997 is about 462.6438755694.

The spelling of 99023997 in words is "ninety-nine million, twenty-three thousand, nine hundred ninety-seven".