812292813 has 16 divisors (see below), whose sum is σ = 1244894400. Its totient is φ = 522854640.

The previous prime is 812292797. The next prime is 812292821. The reversal of 812292813 is 318292218.

812292813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 812292813 - 2⁴ = 812292797 is a prime.

It is a super-2 number, since 2×812292813² = 1319639228102905938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812292713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517923 + ... + 519488.

It is an arithmetic number, because the mean of its divisors is an integer number (77805900).

Almost surely, 2^812292813 is an apocalyptic number.

It is an amenable number.

812292813 is a deficient number, since it is larger than the sum of its proper divisors (432601587).

812292813 is a wasteful number, since it uses less digits than its factorization.

812292813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037449 (or 1037443 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 812292813 is about 28500.7510953659. The cubic root of 812292813 is about 933.0484667909.

The spelling of 812292813 in words is "eight hundred twelve million, two hundred ninety-two thousand, eight hundred thirteen".