189430597 has 2 divisors, whose sum is σ = 189430598. Its totient is φ = 189430596.

The previous prime is 189430573. The next prime is 189430649. The reversal of 189430597 is 795034981.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157778721 + 31651876 = 12561^2 + 5626^2 .

It is a cyclic number.

It is not a de Polignac number, because 189430597 - 2¹⁹ = 188906309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189430567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94715298 + 94715299.

It is an arithmetic number, because the mean of its divisors is an integer number (94715299).

Almost surely, 2^189430597 is an apocalyptic number.

It is an amenable number.

189430597 is a deficient number, since it is larger than the sum of its proper divisors (1).

189430597 is an equidigital number, since it uses as much as digits as its factorization.

189430597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 189430597 is about 13763.3788366084. The cubic root of 189430597 is about 574.3148456648.

The spelling of 189430597 in words is "one hundred eighty-nine million, four hundred thirty thousand, five hundred ninety-seven".