812738 has 8 divisors (see below), whose sum is σ = 1224720. Its totient is φ = 404500.

The previous prime is 812731. The next prime is 812759. The reversal of 812738 is 837218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 812738.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 812738.

It is not an unprimeable number, because it can be changed into a prime (812731) 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, 308 + ... + 1311.

It is an arithmetic number, because the mean of its divisors is an integer number (153090).

2⁸¹²⁷³⁸ is an apocalyptic number.

812738 is a deficient number, since it is larger than the sum of its proper divisors (411982).

812738 is a wasteful number, since it uses less digits than its factorization.

812738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872.

The product of its digits is 2688, while the sum is 29.

The square root of 812738 is about 901.5198278463. The cubic root of 812738 is about 93.3218891864.

The spelling of 812738 in words is "eight hundred twelve thousand, seven hundred thirty-eight".