899199 has 18 divisors (see below), whose sum is σ = 1511640. Its totient is φ = 513576.

The previous prime is 899189. The next prime is 899209. The reversal of 899199 is 991998.

It is an interprime number because it is at equal distance from previous prime (899189) and next prime (899209).

It is not a de Polignac number, because 899199 - 2⁴ = 899183 is a prime.

899199 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 899199.

It is not an unprimeable number, because it can be changed into a prime (899149) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 579 + ... + 1460.

It is an arithmetic number, because the mean of its divisors is an integer number (83980).

2⁸⁹⁹¹⁹⁹ is an apocalyptic number.

899199 is a deficient number, since it is larger than the sum of its proper divisors (612441).

899199 is a wasteful number, since it uses less digits than its factorization.

899199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059 (or 2049 counting only the distinct ones).

The product of its digits is 52488, while the sum is 45.

The square root of 899199 is about 948.2610400096. The cubic root of 899199 is about 96.5202871072.

The spelling of 899199 in words is "eight hundred ninety-nine thousand, one hundred ninety-nine".