779822227 has 2 divisors, whose sum is σ = 779822228. Its totient is φ = 779822226.

The previous prime is 779822207. The next prime is 779822279. The reversal of 779822227 is 722228977.

It is a weak prime.

It is an emirp because it is prime and its reverse (722228977) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-779822227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (779822207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389911113 + 389911114.

It is an arithmetic number, because the mean of its divisors is an integer number (389911114).

Almost surely, 2^779822227 is an apocalyptic number.

779822227 is a deficient number, since it is larger than the sum of its proper divisors (1).

779822227 is an equidigital number, since it uses as much as digits as its factorization.

779822227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 46.

The square root of 779822227 is about 27925.2972589371. The cubic root of 779822227 is about 920.4464700477.

The spelling of 779822227 in words is "seven hundred seventy-nine million, eight hundred twenty-two thousand, two hundred twenty-seven".