189085856 has 12 divisors (see below), whose sum is σ = 372262842. Its totient is φ = 94542912.

The previous prime is 189085847. The next prime is 189085861. The reversal of 189085856 is 658580981.

It can be written as a sum of positive squares in only one way, i.e., 110586256 + 78499600 = 10516^2 + 8860^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2954435 + ... + 2954498.

Almost surely, 2^189085856 is an apocalyptic number.

189085856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189085856 is a deficient number, since it is larger than the sum of its proper divisors (183176986).

189085856 is an equidigital number, since it uses as much as digits as its factorization.

189085856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5908943 (or 5908935 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 50.

The square root of 189085856 is about 13750.8492828625. The cubic root of 189085856 is about 573.9662393592.

The spelling of 189085856 in words is "one hundred eighty-nine million, eighty-five thousand, eight hundred fifty-six".