189872968 has 16 divisors (see below), whose sum is σ = 364695660. Its totient is φ = 92620800.

The previous prime is 189872959. The next prime is 189872971. The reversal of 189872968 is 869278981.

It can be written as a sum of positive squares in 2 ways, for example, as 145009764 + 44863204 = 12042^2 + 6698^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289113 + ... + 289768.

Almost surely, 2^189872968 is an apocalyptic number.

It is an amenable number.

189872968 is a deficient number, since it is larger than the sum of its proper divisors (174822692).

189872968 is a wasteful number, since it uses less digits than its factorization.

189872968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578928 (or 578924 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 58.

The square root of 189872968 is about 13779.4400466782. The cubic root of 189872968 is about 574.7615575945.

The spelling of 189872968 in words is "one hundred eighty-nine million, eight hundred seventy-two thousand, nine hundred sixty-eight".