189357697 has 4 divisors (see below), whose sum is σ = 189423360. Its totient is φ = 189292036.

The previous prime is 189357691. The next prime is 189357737. The reversal of 189357697 is 796753981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 189357697 - 2¹⁹ = 188833409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189357691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28297 + ... + 34342.

It is an arithmetic number, because the mean of its divisors is an integer number (47355840).

Almost surely, 2^189357697 is an apocalyptic number.

It is an amenable number.

189357697 is a deficient number, since it is larger than the sum of its proper divisors (65663).

189357697 is an equidigital number, since it uses as much as digits as its factorization.

189357697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65662.

The product of its digits is 2857680, while the sum is 55.

The square root of 189357697 is about 13760.7302495180. The cubic root of 189357697 is about 574.2411635796.

The spelling of 189357697 in words is "one hundred eighty-nine million, three hundred fifty-seven thousand, six hundred ninety-seven".