779891427 has 12 divisors (see below), whose sum is σ = 1287439920. Its totient is φ = 445652208.

The previous prime is 779891417. The next prime is 779891443. The reversal of 779891427 is 724198977.

It is not a de Polignac number, because 779891427 - 2¹⁵ = 779858659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (779891407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6189552 + ... + 6189677.

It is an arithmetic number, because the mean of its divisors is an integer number (107286660).

Almost surely, 2^779891427 is an apocalyptic number.

779891427 is a deficient number, since it is larger than the sum of its proper divisors (507548493).

779891427 is a wasteful number, since it uses less digits than its factorization.

779891427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12379242 (or 12379239 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 54.

The square root of 779891427 is about 27926.5362513864. The cubic root of 779891427 is about 920.4736954885.

It can be divided in two parts, 7798 and 91427, that added together give a square (99225 = 315²).

The spelling of 779891427 in words is "seven hundred seventy-nine million, eight hundred ninety-one thousand, four hundred twenty-seven".