812944753 has 2 divisors, whose sum is σ = 812944754. Its totient is φ = 812944752.

The previous prime is 812944673. The next prime is 812944801. The reversal of 812944753 is 357449218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 812934144 + 10609 = 28512^2 + 103^2 .

It is a cyclic number.

It is not a de Polignac number, because 812944753 - 2²⁹ = 276073841 is a prime.

It is a super-3 number, since 3×812944753³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (812947753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406472376 + 406472377.

It is an arithmetic number, because the mean of its divisors is an integer number (406472377).

Almost surely, 2^812944753 is an apocalyptic number.

It is an amenable number.

812944753 is a deficient number, since it is larger than the sum of its proper divisors (1).

812944753 is an equidigital number, since it uses as much as digits as its factorization.

812944753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 812944753 is about 28512.1860438655. The cubic root of 812944753 is about 933.2980192279.

The spelling of 812944753 in words is "eight hundred twelve million, nine hundred forty-four thousand, seven hundred fifty-three".