99289331 has 16 divisors (see below), whose sum is σ = 104146560. Its totient is φ = 94582080.

The previous prime is 99289313. The next prime is 99289339. The reversal of 99289331 is 13398299.

It is not a de Polignac number, because 99289331 - 2¹⁴ = 99272947 is a prime.

It is a super-2 number, since 2×99289331² = 19716742500855122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99289339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554600 + ... + 554778.

It is an arithmetic number, because the mean of its divisors is an integer number (6509160).

Almost surely, 2^99289331 is an apocalyptic number.

99289331 is a deficient number, since it is larger than the sum of its proper divisors (4857229).

99289331 is a wasteful number, since it uses less digits than its factorization.

99289331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466.

The product of its digits is 104976, while the sum is 44.

The square root of 99289331 is about 9964.4031933679. The cubic root of 99289331 is about 463.0567238898.

The spelling of 99289331 in words is "ninety-nine million, two hundred eighty-nine thousand, three hundred thirty-one".