812322733 has 2 divisors, whose sum is σ = 812322734. Its totient is φ = 812322732.

The previous prime is 812322727. The next prime is 812322737. The reversal of 812322733 is 337223218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425885769 + 386436964 = 20637^2 + 19658^2 .

It is a cyclic number.

It is not a de Polignac number, because 812322733 - 2⁹ = 812322221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 812322695 and 812322704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812322737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406161366 + 406161367.

It is an arithmetic number, because the mean of its divisors is an integer number (406161367).

Almost surely, 2^812322733 is an apocalyptic number.

It is an amenable number.

812322733 is a deficient number, since it is larger than the sum of its proper divisors (1).

812322733 is an equidigital number, since it uses as much as digits as its factorization.

812322733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 812322733 is about 28501.2759889799. The cubic root of 812322733 is about 933.0599226218.

The spelling of 812322733 in words is "eight hundred twelve million, three hundred twenty-two thousand, seven hundred thirty-three".