800519913 has 24 divisors (see below), whose sum is σ = 1256436480. Its totient is φ = 489278880.

The previous prime is 800519891. The next prime is 800519917. The reversal of 800519913 is 319915008.

It is a happy number.

It is not a de Polignac number, because 800519913 - 2⁶ = 800519849 is a prime.

It is a super-2 number, since 2×800519913² = 1281664262219055138, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (800519917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70206 + ... + 80807.

It is an arithmetic number, because the mean of its divisors is an integer number (52351520).

Almost surely, 2^800519913 is an apocalyptic number.

It is an amenable number.

800519913 is a deficient number, since it is larger than the sum of its proper divisors (455916567).

800519913 is a wasteful number, since it uses less digits than its factorization.

800519913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151069 (or 151066 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 800519913 is about 28293.4606048818. The cubic root of 800519913 is about 928.5188250381.

The spelling of 800519913 in words is "eight hundred million, five hundred nineteen thousand, nine hundred thirteen".