770879 has 4 divisors (see below), whose sum is σ = 775320. Its totient is φ = 766440.

The previous prime is 770873. The next prime is 770881. The reversal of 770879 is 978077.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 770879 - 2⁴ = 770863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949 + ... + 2310.

It is an arithmetic number, because the mean of its divisors is an integer number (193830).

2⁷⁷⁰⁸⁷⁹ is an apocalyptic number.

770879 is a deficient number, since it is larger than the sum of its proper divisors (4441).

770879 is a wasteful number, since it uses less digits than its factorization.

770879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440.

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 770879 is about 877.9971526150. The cubic root of 770879 is about 91.6914283886.

The spelling of 770879 in words is "seven hundred seventy thousand, eight hundred seventy-nine".