812303773 has 4 divisors (see below), whose sum is σ = 829586880. Its totient is φ = 795020668.

The previous prime is 812303771. The next prime is 812303803. The reversal of 812303773 is 377303218.

812303773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 812303773 - 2¹ = 812303771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812303771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8641483 + ... + 8641576.

It is an arithmetic number, because the mean of its divisors is an integer number (207396720).

Almost surely, 2^812303773 is an apocalyptic number.

It is an amenable number.

812303773 is a deficient number, since it is larger than the sum of its proper divisors (17283107).

812303773 is a wasteful number, since it uses less digits than its factorization.

812303773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17283106.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 812303773 is about 28500.9433703518. The cubic root of 812303773 is about 933.0526632108.

The spelling of 812303773 in words is "eight hundred twelve million, three hundred three thousand, seven hundred seventy-three".