16598889 has 12 divisors (see below), whose sum is σ = 24024000. Its totient is φ = 11043864.

The previous prime is 16598887. The next prime is 16598899. The reversal of 16598889 is 98889561.

It is not a de Polignac number, because 16598889 - 2¹ = 16598887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16598887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3852 + ... + 6930.

It is an arithmetic number, because the mean of its divisors is an integer number (2002000).

Almost surely, 2^16598889 is an apocalyptic number.

It is an amenable number.

16598889 is a deficient number, since it is larger than the sum of its proper divisors (7425111).

16598889 is a wasteful number, since it uses less digits than its factorization.

16598889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684 (or 3681 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 16598889 is about 4074.1734130987. The cubic root of 16598889 is about 255.0897492619.

The spelling of 16598889 in words is "sixteen million, five hundred ninety-eight thousand, eight hundred eighty-nine".