9899019 has 48 divisors (see below), whose sum is σ = 16700320. Its totient is φ = 5598720.

The previous prime is 9899009. The next prime is 9899023. The reversal of 9899019 is 9109989.

It is not a de Polignac number, because 9899019 - 2⁴ = 9899003 is a prime.

It is a super-2 number, since 2×9899019² = 195981154324722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9899009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135567 + ... + 135639.

Almost surely, 2^9899019 is an apocalyptic number.

9899019 is a deficient number, since it is larger than the sum of its proper divisors (6801301).

9899019 is a wasteful number, since it uses less digits than its factorization.

9899019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The square root of 9899019 is about 3146.2706495151. The cubic root of 9899019 is about 214.7158243046.

The spelling of 9899019 in words is "nine million, eight hundred ninety-nine thousand, nineteen".