812965080 has 128 divisors (see below), whose sum is σ = 2548869120. Its totient is φ = 207191040.

The previous prime is 812965079. The next prime is 812965093. The reversal of 812965080 is 80569218.

812965080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307444 + ... + 310076.

It is an arithmetic number, because the mean of its divisors is an integer number (19913040).

Almost surely, 2^812965080 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 812965080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274434560).

812965080 is an abundant number, since it is smaller than the sum of its proper divisors (1735904040).

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

812965080 is a wasteful number, since it uses less digits than its factorization.

812965080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761 (or 2757 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 812965080 is about 28512.5425032564. The cubic root of 812965080 is about 933.3057979405.

The spelling of 812965080 in words is "eight hundred twelve million, nine hundred sixty-five thousand, eighty".