189392793 has 4 divisors (see below), whose sum is σ = 252523728. Its totient is φ = 126261860.

The previous prime is 189392771. The next prime is 189392813. The reversal of 189392793 is 397293981.

It is a happy number.

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 189392793 - 2⁵ = 189392761 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189392293) 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, 31565463 + ... + 31565468.

It is an arithmetic number, because the mean of its divisors is an integer number (63130932).

Almost surely, 2^189392793 is an apocalyptic number.

It is an amenable number.

189392793 is a deficient number, since it is larger than the sum of its proper divisors (63130935).

189392793 is an equidigital number, since it uses as much as digits as its factorization.

189392793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63130934.

The product of its digits is 734832, while the sum is 51.

The square root of 189392793 is about 13762.0054134563. The cubic root of 189392793 is about 574.2766384564.

The spelling of 189392793 in words is "one hundred eighty-nine million, three hundred ninety-two thousand, seven hundred ninety-three".