766879 has 4 divisors (see below), whose sum is σ = 768960. Its totient is φ = 764800.

The previous prime is 766877. The next prime is 766891. The reversal of 766879 is 978667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978667 = 181 ⋅5407.

It is a cyclic number.

It is not a de Polignac number, because 766879 - 2¹ = 766877 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 (766873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322 + ... + 1279.

It is an arithmetic number, because the mean of its divisors is an integer number (192240).

2⁷⁶⁶⁸⁷⁹ is an apocalyptic number.

766879 is a deficient number, since it is larger than the sum of its proper divisors (2081).

766879 is a wasteful number, since it uses less digits than its factorization.

766879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080.

The product of its digits is 127008, while the sum is 43.

The square root of 766879 is about 875.7162782545. The cubic root of 766879 is about 91.5325612960.

The spelling of 766879 in words is "seven hundred sixty-six thousand, eight hundred seventy-nine".