812752663 has 2 divisors, whose sum is σ = 812752664. Its totient is φ = 812752662.

The previous prime is 812752651. The next prime is 812752739. The reversal of 812752663 is 366257218.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 812752663 - 2⁵ = 812752631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812752063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406376331 + 406376332.

It is an arithmetic number, because the mean of its divisors is an integer number (406376332).

Almost surely, 2^812752663 is an apocalyptic number.

812752663 is a deficient number, since it is larger than the sum of its proper divisors (1).

812752663 is an equidigital number, since it uses as much as digits as its factorization.

812752663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 812752663 is about 28508.8172851839. The cubic root of 812752663 is about 933.2245040482.

It can be divided in two parts, 81275 and 2663, that added together give a palindrome (83938).

The spelling of 812752663 in words is "eight hundred twelve million, seven hundred fifty-two thousand, six hundred sixty-three".