99412331 has 4 divisors (see below), whose sum is σ = 101837064. Its totient is φ = 96987600.

The previous prime is 99412321. The next prime is 99412343. The reversal of 99412331 is 13321499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13321499 = 619 ⋅21521.

It is a cyclic number.

It is not a de Polignac number, because 99412331 - 2¹⁰ = 99411307 is a prime.

It is a super-2 number, since 2×99412331² = 19765623109707122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99412321) 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 3 ways as a sum of consecutive naturals, for example, 1212305 + ... + 1212386.

It is an arithmetic number, because the mean of its divisors is an integer number (25459266).

Almost surely, 2^99412331 is an apocalyptic number.

99412331 is a deficient number, since it is larger than the sum of its proper divisors (2424733).

99412331 is a wasteful number, since it uses less digits than its factorization.

99412331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424732.

The product of its digits is 5832, while the sum is 32.

The square root of 99412331 is about 9970.5732533290. The cubic root of 99412331 is about 463.2478571282.

The spelling of 99412331 in words is "ninety-nine million, four hundred twelve thousand, three hundred thirty-one".