800913 has 4 divisors (see below), whose sum is σ = 1067888. Its totient is φ = 533940.

The previous prime is 800909. The next prime is 800923. The reversal of 800913 is 319008.

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 800913 - 2² = 800909 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 800913.

It is not an unprimeable number, because it can be changed into a prime (800903) 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, 133483 + ... + 133488.

It is an arithmetic number, because the mean of its divisors is an integer number (266972).

2⁸⁰⁰⁹¹³ is an apocalyptic number.

It is an amenable number.

800913 is a deficient number, since it is larger than the sum of its proper divisors (266975).

800913 is a wasteful number, since it uses less digits than its factorization.

800913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266974.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 800913 is about 894.9374279803. The cubic root of 800913 is about 92.8670780015.

The spelling of 800913 in words is "eight hundred thousand, nine hundred thirteen".