768884879 has 4 divisors (see below), whose sum is σ = 878725584. Its totient is φ = 659044176.

The previous prime is 768884861. The next prime is 768884881. The reversal of 768884879 is 978488867.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978488867 = 31 ⋅31564157.

It is a de Polignac number, because none of the positive numbers 2^k-768884879 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 (768884819) 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, 54920342 + ... + 54920355.

It is an arithmetic number, because the mean of its divisors is an integer number (219681396).

Almost surely, 2^768884879 is an apocalyptic number.

768884879 is a deficient number, since it is larger than the sum of its proper divisors (109840705).

768884879 is a wasteful number, since it uses less digits than its factorization.

768884879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109840704.

The product of its digits is 43352064, while the sum is 65.

The square root of 768884879 is about 27728.7734853167. The cubic root of 768884879 is about 916.1229721030.

The spelling of 768884879 in words is "seven hundred sixty-eight million, eight hundred eighty-four thousand, eight hundred seventy-nine".