779563 has 2 divisors, whose sum is σ = 779564. Its totient is φ = 779562.

The previous prime is 779561. The next prime is 779573. The reversal of 779563 is 365977.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 779563 - 2¹ = 779561 is a prime.

Together with 779561, it forms a pair of twin primes.

779563 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (779561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389781 + 389782.

It is an arithmetic number, because the mean of its divisors is an integer number (389782).

2⁷⁷⁹⁵⁶³ is an apocalyptic number.

779563 is a deficient number, since it is larger than the sum of its proper divisors (1).

779563 is an equidigital number, since it uses as much as digits as its factorization.

779563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 37.

The square root of 779563 is about 882.9286494389. The cubic root of 779563 is about 92.0344467731.

The spelling of 779563 in words is "seven hundred seventy-nine thousand, five hundred sixty-three".