768877 has 4 divisors (see below), whose sum is σ = 795420. Its totient is φ = 742336.

The previous prime is 768869. The next prime is 768881. The reversal of 768877 is 778867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 778867 = 19 ⋅40993.

It can be written as a sum of positive squares in 2 ways, for example, as 259081 + 509796 = 509^2 + 714^2 .

It is a cyclic number.

It is not a de Polignac number, because 768877 - 2³ = 768869 is a prime.

It is a super-2 number, since 2×768877² = 1182343682258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768857) 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, 13228 + ... + 13285.

It is an arithmetic number, because the mean of its divisors is an integer number (198855).

2⁷⁶⁸⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

768877 is a deficient number, since it is larger than the sum of its proper divisors (26543).

768877 is a wasteful number, since it uses less digits than its factorization.

768877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26542.

The product of its digits is 131712, while the sum is 43.

The square root of 768877 is about 876.8563166221. The cubic root of 768877 is about 91.6119842828.

The spelling of 768877 in words is "seven hundred sixty-eight thousand, eight hundred seventy-seven".