800917797 has 4 divisors (see below), whose sum is σ = 1067890400. Its totient is φ = 533945196.

The previous prime is 800917781. The next prime is 800917807. The reversal of 800917797 is 797719008.

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 not a de Polignac number, because 800917797 - 2⁴ = 800917781 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 (800927797) 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, 133486297 + ... + 133486302.

It is an arithmetic number, because the mean of its divisors is an integer number (266972600).

Almost surely, 2^800917797 is an apocalyptic number.

It is an amenable number.

800917797 is a deficient number, since it is larger than the sum of its proper divisors (266972603).

800917797 is a wasteful number, since it uses less digits than its factorization.

800917797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266972602.

The product of its (nonzero) digits is 222264, while the sum is 48.

The square root of 800917797 is about 28300.4911088129. The cubic root of 800917797 is about 928.6726340759.

The spelling of 800917797 in words is "eight hundred million, nine hundred seventeen thousand, seven hundred ninety-seven".