189277017 has 4 divisors (see below), whose sum is σ = 252369360. Its totient is φ = 126184676.

The previous prime is 189277007. The next prime is 189277019. The reversal of 189277017 is 710772981.

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 189277017 - 2⁷ = 189276889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189277017.

It is not an unprimeable number, because it can be changed into a prime (189277019) 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, 31546167 + ... + 31546172.

It is an arithmetic number, because the mean of its divisors is an integer number (63092340).

Almost surely, 2^189277017 is an apocalyptic number.

It is an amenable number.

189277017 is a deficient number, since it is larger than the sum of its proper divisors (63092343).

189277017 is an equidigital number, since it uses as much as digits as its factorization.

189277017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63092342.

The product of its (nonzero) digits is 49392, while the sum is 42.

The square root of 189277017 is about 13757.7984067219. The cubic root of 189277017 is about 574.1595959798.

The spelling of 189277017 in words is "one hundred eighty-nine million, two hundred seventy-seven thousand, seventeen".