810772 has 6 divisors (see below), whose sum is σ = 1418858. Its totient is φ = 405384.

The previous prime is 810769. The next prime is 810791. The reversal of 810772 is 277018.

It is a happy number.

810772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 512656 + 298116 = 716^2 + 546^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101343 + ... + 101350.

2⁸¹⁰⁷⁷² is an apocalyptic number.

It is an amenable number.

810772 is a deficient number, since it is larger than the sum of its proper divisors (608086).

810772 is a wasteful number, since it uses less digits than its factorization.

810772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202697 (or 202695 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 810772 is about 900.4287867455. The cubic root of 810772 is about 93.2465803862.

The spelling of 810772 in words is "eight hundred ten thousand, seven hundred seventy-two".