189498937 has 2 divisors, whose sum is σ = 189498938. Its totient is φ = 189498936.

The previous prime is 189498923. The next prime is 189498943. The reversal of 189498937 is 739894981.

It is a happy number.

189498937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133263936 + 56235001 = 11544^2 + 7499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189498937 is a prime.

It is not a weakly prime, because it can be changed into another prime (189498997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94749468 + 94749469.

It is an arithmetic number, because the mean of its divisors is an integer number (94749469).

Almost surely, 2^189498937 is an apocalyptic number.

It is an amenable number.

189498937 is a deficient number, since it is larger than the sum of its proper divisors (1).

189498937 is an equidigital number, since it uses as much as digits as its factorization.

189498937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 58.

The square root of 189498937 is about 13765.8612879834. The cubic root of 189498937 is about 574.3839016643.

The spelling of 189498937 in words is "one hundred eighty-nine million, four hundred ninety-eight thousand, nine hundred thirty-seven".