779912047 has 2 divisors, whose sum is σ = 779912048. Its totient is φ = 779912046.

The previous prime is 779912039. The next prime is 779912141. The reversal of 779912047 is 740219977.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 779912047 - 2³ = 779912039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 779911988 and 779912006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (779912647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389956023 + 389956024.

It is an arithmetic number, because the mean of its divisors is an integer number (389956024).

Almost surely, 2^779912047 is an apocalyptic number.

779912047 is a deficient number, since it is larger than the sum of its proper divisors (1).

779912047 is an equidigital number, since it uses as much as digits as its factorization.

779912047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 46.

The square root of 779912047 is about 27926.9054318591. The cubic root of 779912047 is about 920.4818077290.

The spelling of 779912047 in words is "seven hundred seventy-nine million, nine hundred twelve thousand, forty-seven".