812293875 has 48 divisors (see below), whose sum is σ = 1528008768. Its totient is φ = 414374400.

The previous prime is 812293787. The next prime is 812293877. The reversal of 812293875 is 578392218.

It is a happy number.

It is not a de Polignac number, because 812293875 - 2¹⁴ = 812277491 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 812293875.

It is not an unprimeable number, because it can be changed into a prime (812293877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10179 + ... + 41571.

It is an arithmetic number, because the mean of its divisors is an integer number (31833516).

Almost surely, 2^812293875 is an apocalyptic number.

812293875 is a deficient number, since it is larger than the sum of its proper divisors (715714893).

812293875 is a wasteful number, since it uses less digits than its factorization.

812293875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31437 (or 31424 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 812293875 is about 28500.7697264477. The cubic root of 812293875 is about 933.0488734164.

The spelling of 812293875 in words is "eight hundred twelve million, two hundred ninety-three thousand, eight hundred seventy-five".