779965 has 8 divisors (see below), whose sum is σ = 956160. Its totient is φ = 610512.

The previous prime is 779939. The next prime is 779971. The reversal of 779965 is 569977.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 779965 - 2⁷ = 779837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425 + ... + 1894.

It is an arithmetic number, because the mean of its divisors is an integer number (119520).

2⁷⁷⁹⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

779965 is a deficient number, since it is larger than the sum of its proper divisors (176195).

779965 is a wasteful number, since it uses less digits than its factorization.

779965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371.

The product of its digits is 119070, while the sum is 43.

The square root of 779965 is about 883.1562715624. The cubic root of 779965 is about 92.0502639638.

The spelling of 779965 in words is "seven hundred seventy-nine thousand, nine hundred sixty-five".