189608933 has 2 divisors, whose sum is σ = 189608934. Its totient is φ = 189608932.

The previous prime is 189608911. The next prime is 189608957. The reversal of 189608933 is 339806981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187197124 + 2411809 = 13682^2 + 1553^2 .

It is a cyclic number.

It is not a de Polignac number, because 189608933 - 2¹² = 189604837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189608983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94804466 + 94804467.

It is an arithmetic number, because the mean of its divisors is an integer number (94804467).

Almost surely, 2^189608933 is an apocalyptic number.

It is an amenable number.

189608933 is a deficient number, since it is larger than the sum of its proper divisors (1).

189608933 is an equidigital number, since it uses as much as digits as its factorization.

189608933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 189608933 is about 13769.8559542212. The cubic root of 189608933 is about 574.4950152360.

The spelling of 189608933 in words is "one hundred eighty-nine million, six hundred eight thousand, nine hundred thirty-three".