792640 has 28 divisors (see below), whose sum is σ = 1888236. Its totient is φ = 316928.

The previous prime is 792637. The next prime is 792641. The reversal of 792640 is 46297.

It can be written as a sum of positive squares in 2 ways, for example, as 341056 + 451584 = 584^2 + 672^2 .

It is a junction number, because it is equal to n+sod(n) for n = 792599 and 792608.

It is not an unprimeable number, because it can be changed into a prime (792641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919 + ... + 1558.

It is an arithmetic number, because the mean of its divisors is an integer number (67437).

2⁷⁹²⁶⁴⁰ is an apocalyptic number.

It is an amenable number.

792640 is an abundant number, since it is smaller than the sum of its proper divisors (1095596).

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

792640 is a wasteful number, since it uses less digits than its factorization.

792640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494 (or 2484 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 792640 is about 890.3033190997. The cubic root of 792640 is about 92.5462150361.

Adding to 792640 its product of nonzero digits (3024), we get a square (795664 = 892²).

The spelling of 792640 in words is "seven hundred ninety-two thousand, six hundred forty".