189976227 has 8 divisors (see below), whose sum is σ = 289487616. Its totient is φ = 108557832.

The previous prime is 189976223. The next prime is 189976243. The reversal of 189976227 is 722679981.

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

It is not a de Polignac number, because 189976227 - 2² = 189976223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189976227.

It is not an unprimeable number, because it can be changed into a prime (189976223) 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, 4523223 + ... + 4523264.

It is an arithmetic number, because the mean of its divisors is an integer number (36185952).

Almost surely, 2^189976227 is an apocalyptic number.

189976227 is a deficient number, since it is larger than the sum of its proper divisors (99511389).

189976227 is an equidigital number, since it uses as much as digits as its factorization.

189976227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9046497.

The product of its digits is 762048, while the sum is 51.

The square root of 189976227 is about 13783.1863877697. The cubic root of 189976227 is about 574.8657299593.

The spelling of 189976227 in words is "one hundred eighty-nine million, nine hundred seventy-six thousand, two hundred twenty-seven".