811702973 has 2 divisors, whose sum is σ = 811702974. Its totient is φ = 811702972.

The previous prime is 811702951. The next prime is 811702993. The reversal of 811702973 is 379207118.

811702973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704000089 + 107702884 = 26533^2 + 10378^2 .

It is a cyclic number.

It is not a de Polignac number, because 811702973 - 2¹⁰ = 811701949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (811702993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405851486 + 405851487.

It is an arithmetic number, because the mean of its divisors is an integer number (405851487).

Almost surely, 2^811702973 is an apocalyptic number.

It is an amenable number.

811702973 is a deficient number, since it is larger than the sum of its proper divisors (1).

811702973 is an equidigital number, since it uses as much as digits as its factorization.

811702973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 811702973 is about 28490.4014187235. The cubic root of 811702973 is about 932.8225701835.

The spelling of 811702973 in words is "eight hundred eleven million, seven hundred two thousand, nine hundred seventy-three".