189856874 has 8 divisors (see below), whose sum is σ = 284864580. Its totient is φ = 94902016.

The previous prime is 189856819. The next prime is 189856883. The reversal of 189856874 is 478658981.

It can be written as a sum of positive squares in 2 ways, for example, as 177076249 + 12780625 = 13307^2 + 3575^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×189856874³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2489 + ... + 19644.

Almost surely, 2^189856874 is an apocalyptic number.

189856874 is a deficient number, since it is larger than the sum of its proper divisors (95007706).

189856874 is a wasteful number, since it uses less digits than its factorization.

189856874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26424.

The product of its digits is 3870720, while the sum is 56.

The square root of 189856874 is about 13778.8560483082. The cubic root of 189856874 is about 574.7453178352.

The spelling of 189856874 in words is "one hundred eighty-nine million, eight hundred fifty-six thousand, eight hundred seventy-four".