812563060 has 12 divisors (see below), whose sum is σ = 1706382468. Its totient is φ = 325025216.

The previous prime is 812563057. The next prime is 812563091. The reversal of 812563060 is 60365218.

It can be written as a sum of positive squares in 2 ways, for example, as 620906724 + 191656336 = 24918^2 + 13844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20314057 + ... + 20314096.

It is an arithmetic number, because the mean of its divisors is an integer number (142198539).

Almost surely, 2^812563060 is an apocalyptic number.

It is an amenable number.

812563060 is an abundant number, since it is smaller than the sum of its proper divisors (893819408).

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

812563060 is a wasteful number, since it uses less digits than its factorization.

812563060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40628162 (or 40628160 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 812563060 is about 28505.4917515906. The cubic root of 812563060 is about 933.1519293135.

The spelling of 812563060 in words is "eight hundred twelve million, five hundred sixty-three thousand, sixty".