99603331 has 4 divisors (see below), whose sum is σ = 99623664. Its totient is φ = 99583000.

The previous prime is 99603277. The next prime is 99603337. The reversal of 99603331 is 13330699.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99603331 - 2¹⁷ = 99472259 is a prime.

It is a super-2 number, since 2×99603331² = 19841647092591122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99603337) 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, 2181 + ... + 14281.

It is an arithmetic number, because the mean of its divisors is an integer number (24905916).

Almost surely, 2^99603331 is an apocalyptic number.

99603331 is a deficient number, since it is larger than the sum of its proper divisors (20333).

99603331 is a wasteful number, since it uses less digits than its factorization.

99603331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20332.

The product of its (nonzero) digits is 13122, while the sum is 34.

The square root of 99603331 is about 9980.1468426071. The cubic root of 99603331 is about 463.5443452826.

The spelling of 99603331 in words is "ninety-nine million, six hundred three thousand, three hundred thirty-one".