189207713 has 4 divisors (see below), whose sum is σ = 191487408. Its totient is φ = 186928020.

The previous prime is 189207701. The next prime is 189207727. The reversal of 189207713 is 317702981.

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 189207713 - 2²⁶ = 122098849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189206713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139723 + ... + 1139888.

It is an arithmetic number, because the mean of its divisors is an integer number (47871852).

Almost surely, 2^189207713 is an apocalyptic number.

It is an amenable number.

189207713 is a deficient number, since it is larger than the sum of its proper divisors (2279695).

189207713 is an equidigital number, since it uses as much as digits as its factorization.

189207713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279694.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 189207713 is about 13755.2794591749. The cubic root of 189207713 is about 574.0895110238.

The spelling of 189207713 in words is "one hundred eighty-nine million, two hundred seven thousand, seven hundred thirteen".