99031801 has 16 divisors (see below), whose sum is σ = 109670400. Its totient is φ = 88678800.

The previous prime is 99031789. The next prime is 99031811. The reversal of 99031801 is 10813099.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99031801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99031811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365296 + ... + 365566.

It is an arithmetic number, because the mean of its divisors is an integer number (6854400).

Almost surely, 2^99031801 is an apocalyptic number.

It is an amenable number.

99031801 is a deficient number, since it is larger than the sum of its proper divisors (10638599).

99031801 is a wasteful number, since it uses less digits than its factorization.

99031801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 99031801 is about 9951.4723031318. The cubic root of 99031801 is about 462.6560287782.

The spelling of 99031801 in words is "ninety-nine million, thirty-one thousand, eight hundred one".