899913 has 8 divisors (see below), whose sum is σ = 1371328. Its totient is φ = 514224.

The previous prime is 899903. The next prime is 899917. The reversal of 899913 is 319998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 899913 - 2⁵ = 899881 is a prime.

It is a zygodrome in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 899913.

It is not an unprimeable number, because it can be changed into a prime (899917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21406 + ... + 21447.

It is an arithmetic number, because the mean of its divisors is an integer number (171416).

2⁸⁹⁹⁹¹³ is an apocalyptic number.

It is an amenable number.

899913 is a deficient number, since it is larger than the sum of its proper divisors (471415).

899913 is a wasteful number, since it uses less digits than its factorization.

899913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42863.

The product of its digits is 17496, while the sum is 39.

The square root of 899913 is about 948.6374439163. The cubic root of 899913 is about 96.5458273390.

The spelling of 899913 in words is "eight hundred ninety-nine thousand, nine hundred thirteen".