189796697 has 2 divisors, whose sum is σ = 189796698. Its totient is φ = 189796696.

The previous prime is 189796639. The next prime is 189796723. The reversal of 189796697 is 796697981.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124121881 + 65674816 = 11141^2 + 8104^2 .

It is an emirp because it is prime and its reverse (796697981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189796697 - 2²⁰ = 188748121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189796297) by changing a digit.

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, 94898348 + 94898349.

It is an arithmetic number, because the mean of its divisors is an integer number (94898349).

Almost surely, 2^189796697 is an apocalyptic number.

It is an amenable number.

189796697 is a deficient number, since it is larger than the sum of its proper divisors (1).

189796697 is an equidigital number, since it uses as much as digits as its factorization.

189796697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10287648, while the sum is 62.

The square root of 189796697 is about 13776.6722034024. The cubic root of 189796697 is about 574.6845876949.

The spelling of 189796697 in words is "one hundred eighty-nine million, seven hundred ninety-six thousand, six hundred ninety-seven".