776920 has 16 divisors (see below), whose sum is σ = 1748160. Its totient is φ = 310752.

The previous prime is 776899. The next prime is 776921. The reversal of 776920 is 29677.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (776921) 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, 9672 + ... + 9751.

It is an arithmetic number, because the mean of its divisors is an integer number (109260).

2⁷⁷⁶⁹²⁰ is an apocalyptic number.

It is an amenable number.

776920 is an abundant number, since it is smaller than the sum of its proper divisors (971240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

776920 is a wasteful number, since it uses less digits than its factorization.

776920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19434 (or 19430 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 776920 is about 881.4306552418. The cubic root of 776920 is about 91.9303190074.

The spelling of 776920 in words is "seven hundred seventy-six thousand, nine hundred twenty".