389976227 has 2 divisors, whose sum is σ = 389976228. Its totient is φ = 389976226.

The previous prime is 389976217. The next prime is 389976269. The reversal of 389976227 is 722679983.

It is a weak prime.

It is an emirp because it is prime and its reverse (722679983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389976227 - 2⁴ = 389976211 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (389976217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194988113 + 194988114.

It is an arithmetic number, because the mean of its divisors is an integer number (194988114).

Almost surely, 2^389976227 is an apocalyptic number.

389976227 is a deficient number, since it is larger than the sum of its proper divisors (1).

389976227 is an equidigital number, since it uses as much as digits as its factorization.

389976227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 53.

The square root of 389976227 is about 19747.8157526345. The cubic root of 389976227 is about 730.5995118951.

The spelling of 389976227 in words is "three hundred eighty-nine million, nine hundred seventy-six thousand, two hundred twenty-seven".