812061336 has 64 divisors (see below), whose sum is σ = 2087791200. Its totient is φ = 263098368.

The previous prime is 812061331. The next prime is 812061343. The reversal of 812061336 is 633160218.

It is a super-2 number, since 2×812061336² = 1318887226852209792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812061331) 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, 135720 + ... + 141576.

Almost surely, 2^812061336 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 812061336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1043895600).

812061336 is an abundant number, since it is smaller than the sum of its proper divisors (1275729864).

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

812061336 is a wasteful number, since it uses less digits than its factorization.

812061336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028 (or 6024 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 812061336 is about 28496.6899130408. The cubic root of 812061336 is about 932.9598288944.

The spelling of 812061336 in words is "eight hundred twelve million, sixty-one thousand, three hundred thirty-six".