779688053 has 2 divisors, whose sum is σ = 779688054. Its totient is φ = 779688052.

The previous prime is 779688001. The next prime is 779688059. The reversal of 779688053 is 350886977.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 594238129 + 185449924 = 24377^2 + 13618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-779688053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 779687986 and 779688004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (779688059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389844026 + 389844027.

It is an arithmetic number, because the mean of its divisors is an integer number (389844027).

Almost surely, 2^779688053 is an apocalyptic number.

It is an amenable number.

779688053 is a deficient number, since it is larger than the sum of its proper divisors (1).

779688053 is an equidigital number, since it uses as much as digits as its factorization.

779688053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 779688053 is about 27922.8947818811. The cubic root of 779688053 is about 920.3936772170.

The spelling of 779688053 in words is "seven hundred seventy-nine million, six hundred eighty-eight thousand, fifty-three".