812083700 has 18 divisors (see below), whose sum is σ = 1762221846. Its totient is φ = 324833440.

The previous prime is 812083697. The next prime is 812083817. The reversal of 812083700 is 7380218.

It can be written as a sum of positive squares in 3 ways, for example, as 206726884 + 605356816 = 14378^2 + 24604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4060319 + ... + 4060518.

Almost surely, 2^812083700 is an apocalyptic number.

It is an amenable number.

812083700 is an abundant number, since it is smaller than the sum of its proper divisors (950138146).

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

812083700 is a wasteful number, since it uses less digits than its factorization.

812083700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8120851 (or 8120844 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 812083700 is about 28497.0823067906. The cubic root of 812083700 is about 932.9683933222.

The spelling of 812083700 in words is "eight hundred twelve million, eighty-three thousand, seven hundred".