797805893 has 4 divisors (see below), whose sum is σ = 797926668. Its totient is φ = 797685120.

The previous prime is 797805887. The next prime is 797805901. The reversal of 797805893 is 398508797.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 509043844 + 288762049 = 22562^2 + 16993^2 .

It is a cyclic number.

It is not a de Polignac number, because 797805893 - 2⁸ = 797805637 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 (791805893) 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, 49868 + ... + 63893.

It is an arithmetic number, because the mean of its divisors is an integer number (199481667).

Almost surely, 2^797805893 is an apocalyptic number.

It is an amenable number.

797805893 is a deficient number, since it is larger than the sum of its proper divisors (120775).

797805893 is a wasteful number, since it uses less digits than its factorization.

797805893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120774.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 797805893 is about 28245.4579180441. The cubic root of 797805893 is about 927.4683111208.

The spelling of 797805893 in words is "seven hundred ninety-seven million, eight hundred five thousand, eight hundred ninety-three".