189317697 has 8 divisors (see below), whose sum is σ = 254266656. Its totient is φ = 125290272.

The previous prime is 189317693. The next prime is 189317717. The reversal of 189317697 is 796713981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189317697 - 2² = 189317693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189317693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229903 + ... + 230724.

It is an arithmetic number, because the mean of its divisors is an integer number (31783332).

Almost surely, 2^189317697 is an apocalyptic number.

It is an amenable number.

189317697 is a deficient number, since it is larger than the sum of its proper divisors (64948959).

189317697 is a wasteful number, since it uses less digits than its factorization.

189317697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460767.

The product of its digits is 571536, while the sum is 51.

The square root of 189317697 is about 13759.2767615162. The cubic root of 189317697 is about 574.2007264167.

The spelling of 189317697 in words is "one hundred eighty-nine million, three hundred seventeen thousand, six hundred ninety-seven".