812446976 has 72 divisors (see below), whose sum is σ = 1777495104. Its totient is φ = 367554560.

The previous prime is 812446969. The next prime is 812446979. The reversal of 812446976 is 679644218.

It is a self number, because there is not a number n which added to its sum of digits gives 812446976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812446979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740060 + ... + 741156.

It is an arithmetic number, because the mean of its divisors is an integer number (24687432).

Almost surely, 2^812446976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812446976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888747552).

812446976 is an abundant number, since it is smaller than the sum of its proper divisors (965048128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812446976 is a wasteful number, since it uses less digits than its factorization.

812446976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387 (or 1373 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 812446976 is about 28503.4555098149. The cubic root of 812446976 is about 933.1074900272.

The spelling of 812446976 in words is "eight hundred twelve million, four hundred forty-six thousand, nine hundred seventy-six".