812020762 has 16 divisors (see below), whose sum is σ = 1392402240. Its totient is φ = 347917248.

The previous prime is 812020751. The next prime is 812020763. The reversal of 812020762 is 267020218.

It is a self number, because there is not a number n which added to its sum of digits gives 812020762.

It is not an unprimeable number, because it can be changed into a prime (812020763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94689 + ... + 102907.

It is an arithmetic number, because the mean of its divisors is an integer number (87025140).

Almost surely, 2^812020762 is an apocalyptic number.

812020762 is a deficient number, since it is larger than the sum of its proper divisors (580381478).

812020762 is a wasteful number, since it uses less digits than its factorization.

812020762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15285.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 812020762 is about 28495.9779969034. The cubic root of 812020762 is about 932.9442904365.

It can be divided in two parts, 8120 and 20762, that added together give a palindrome (28882).

The spelling of 812020762 in words is "eight hundred twelve million, twenty thousand, seven hundred sixty-two".