99623672 has 32 divisors (see below), whose sum is σ = 206388000. Its totient is φ = 44841984.

The previous prime is 99623659. The next prime is 99623681. The reversal of 99623672 is 27632699.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 12797 + ... + 19052.

It is an arithmetic number, because the mean of its divisors is an integer number (6449625).

Almost surely, 2^99623672 is an apocalyptic number.

99623672 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

99623672 is an abundant number, since it is smaller than the sum of its proper divisors (106764328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99623672 is a wasteful number, since it uses less digits than its factorization.

99623672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31895 (or 31891 counting only the distinct ones).

The product of its digits is 244944, while the sum is 44.

The square root of 99623672 is about 9981.1658637656. The cubic root of 99623672 is about 463.5758981555.

The spelling of 99623672 in words is "ninety-nine million, six hundred twenty-three thousand, six hundred seventy-two".