812274939 has 32 divisors (see below), whose sum is σ = 1377761280. Its totient is φ = 463320000.

The previous prime is 812274937. The next prime is 812274941. The reversal of 812274939 is 939472218.

It is an interprime number because it is at equal distance from previous prime (812274937) and next prime (812274941).

It is not a de Polignac number, because 812274939 - 2¹ = 812274937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 812274894 and 812274903.

It is not an unprimeable number, because it can be changed into a prime (812274937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110014 + ... + 117164.

It is an arithmetic number, because the mean of its divisors is an integer number (43055040).

Almost surely, 2^812274939 is an apocalyptic number.

812274939 is a deficient number, since it is larger than the sum of its proper divisors (565486341).

812274939 is a wasteful number, since it uses less digits than its factorization.

812274939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7768 (or 7762 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 812274939 is about 28500.4375229574. The cubic root of 812274939 is about 933.0416230229.

The spelling of 812274939 in words is "eight hundred twelve million, two hundred seventy-four thousand, nine hundred thirty-nine".