189088868 has 6 divisors (see below), whose sum is σ = 330905526. Its totient is φ = 94544432.

The previous prime is 189088859. The next prime is 189088901. The reversal of 189088868 is 868880981.

It can be written as a sum of positive squares in only one way, i.e., 173659684 + 15429184 = 13178^2 + 3928^2 .

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, 23636105 + ... + 23636112.

It is an arithmetic number, because the mean of its divisors is an integer number (55150921).

Almost surely, 2^189088868 is an apocalyptic number.

It is an amenable number.

189088868 is a deficient number, since it is larger than the sum of its proper divisors (141816658).

189088868 is a wasteful number, since it uses less digits than its factorization.

189088868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47272221 (or 47272219 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 56.

The square root of 189088868 is about 13750.9588029344. The cubic root of 189088868 is about 573.9692869644.

The spelling of 189088868 in words is "one hundred eighty-nine million, eighty-eight thousand, eight hundred sixty-eight".