800358973 has 2 divisors, whose sum is σ = 800358974. Its totient is φ = 800358972.

The previous prime is 800358967. The next prime is 800359003. The reversal of 800358973 is 379853008.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 790003449 + 10355524 = 28107^2 + 3218^2 .

It is a cyclic number.

It is not a de Polignac number, because 800358973 - 2²⁵ = 766804541 is a prime.

It is a super-2 number, since 2×800358973² = 1281148971323229458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800358073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400179486 + 400179487.

It is an arithmetic number, because the mean of its divisors is an integer number (400179487).

Almost surely, 2^800358973 is an apocalyptic number.

It is an amenable number.

800358973 is a deficient number, since it is larger than the sum of its proper divisors (1).

800358973 is an equidigital number, since it uses as much as digits as its factorization.

800358973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 800358973 is about 28290.6163418191. The cubic root of 800358973 is about 928.4565963819.

The spelling of 800358973 in words is "eight hundred million, three hundred fifty-eight thousand, nine hundred seventy-three".