189706768 has 10 divisors (see below), whose sum is σ = 367556894. Its totient is φ = 94853376.

The previous prime is 189706679. The next prime is 189706799. The reversal of 189706768 is 867607981.

It can be written as a sum of positive squares in only one way, i.e., 166203664 + 23503104 = 12892^2 + 4848^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5928321 + ... + 5928352.

Almost surely, 2^189706768 is an apocalyptic number.

It is an amenable number.

189706768 is a deficient number, since it is larger than the sum of its proper divisors (177850126).

189706768 is a wasteful number, since it uses less digits than its factorization.

189706768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11856681 (or 11856675 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 189706768 is about 13773.4080023791. The cubic root of 189706768 is about 574.5938081473.

The spelling of 189706768 in words is "one hundred eighty-nine million, seven hundred six thousand, seven hundred sixty-eight".