812704 has 24 divisors (see below), whose sum is σ = 1621620. Its totient is φ = 400896.

The previous prime is 812701. The next prime is 812711. The reversal of 812704 is 407218.

It can be written as a sum of positive squares in 2 ways, for example, as 810000 + 2704 = 900^2 + 52^2 .

It is not an unprimeable number, because it can be changed into a prime (812701) 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, 3372 + ... + 3604.

2⁸¹²⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

812704 is a deficient number, since it is larger than the sum of its proper divisors (808916).

812704 is a wasteful number, since it uses less digits than its factorization.

812704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 812704 is about 901.5009706040. The cubic root of 812704 is about 93.3205878287.

It can be divided in two parts, 81 and 2704, that multiplied together give a square (219024 = 468²).

The spelling of 812704 in words is "eight hundred twelve thousand, seven hundred four".