800647373 has 2 divisors, whose sum is σ = 800647374. Its totient is φ = 800647372.

The previous prime is 800647369. The next prime is 800647423. The reversal of 800647373 is 373746008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 639179524 + 161467849 = 25282^2 + 12707^2 .

It is a cyclic number.

It is not a de Polignac number, because 800647373 - 2² = 800647369 is a prime.

It is a super-2 number, since 2×800647373² = 1282072431783602258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800647313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400323686 + 400323687.

It is an arithmetic number, because the mean of its divisors is an integer number (400323687).

Almost surely, 2^800647373 is an apocalyptic number.

It is an amenable number.

800647373 is a deficient number, since it is larger than the sum of its proper divisors (1).

800647373 is an equidigital number, since it uses as much as digits as its factorization.

800647373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 800647373 is about 28295.7129791776. The cubic root of 800647373 is about 928.5681024834.

The spelling of 800647373 in words is "eight hundred million, six hundred forty-seven thousand, three hundred seventy-three".