99900331 has 8 divisors (see below), whose sum is σ = 103680720. Its totient is φ = 96142368.

The previous prime is 99900329. The next prime is 99900343. The reversal of 99900331 is 13300999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99900331 - 2¹ = 99900329 is a prime.

It is a super-2 number, since 2×99900331² = 19960152267819122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99900301) 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 7 ways as a sum of consecutive naturals, for example, 3760 + ... + 14626.

It is an arithmetic number, because the mean of its divisors is an integer number (12960090).

Almost surely, 2^99900331 is an apocalyptic number.

99900331 is a deficient number, since it is larger than the sum of its proper divisors (3780389).

99900331 is a wasteful number, since it uses less digits than its factorization.

99900331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11213.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 99900331 is about 9995.0153076421. The cubic root of 99900331 is about 464.0046245947.

The spelling of 99900331 in words is "ninety-nine million, nine hundred thousand, three hundred thirty-one".