99812038 has 16 divisors (see below), whose sum is σ = 154069776. Its totient is φ = 48474400.

The previous prime is 99812023. The next prime is 99812039. The reversal of 99812038 is 83021899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99812039) 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 in 7 ways as a sum of consecutive naturals, for example, 6045 + ... + 15367.

It is an arithmetic number, because the mean of its divisors is an integer number (9629361).

Almost surely, 2^99812038 is an apocalyptic number.

99812038 is a deficient number, since it is larger than the sum of its proper divisors (54257738).

99812038 is a wasteful number, since it uses less digits than its factorization.

99812038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9479.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 99812038 is about 9990.5974796305. The cubic root of 99812038 is about 463.8678868573.

The spelling of 99812038 in words is "ninety-nine million, eight hundred twelve thousand, thirty-eight".