189654904 has 16 divisors (see below), whose sum is σ = 355960800. Its totient is φ = 94732032.

The previous prime is 189654893. The next prime is 189654911. The reversal of 189654904 is 409456981.

It is a happy number.

It is a super-2 number, since 2×189654904² = 71937965222498432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 3097 + ... + 19720.

It is an arithmetic number, because the mean of its divisors is an integer number (22247550).

Almost surely, 2^189654904 is an apocalyptic number.

It is an amenable number.

189654904 is a deficient number, since it is larger than the sum of its proper divisors (166305896).

189654904 is a wasteful number, since it uses less digits than its factorization.

189654904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23862 (or 23858 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 189654904 is about 13771.5251152514. The cubic root of 189654904 is about 574.5414405737.

The spelling of 189654904 in words is "one hundred eighty-nine million, six hundred fifty-four thousand, nine hundred four".