1198899 has 12 divisors (see below), whose sum is σ = 1865136. Its totient is φ = 737712.

The previous prime is 1198877. The next prime is 1198903. The reversal of 1198899 is 9988911.

It is not a de Polignac number, because 1198899 - 2⁵ = 1198867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1198819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5007 + ... + 5240.

It is an arithmetic number, because the mean of its divisors is an integer number (155428).

2^1198899 is an apocalyptic number.

1198899 is a deficient number, since it is larger than the sum of its proper divisors (666237).

1198899 is a wasteful number, since it uses less digits than its factorization.

1198899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10266 (or 10263 counting only the distinct ones).

The product of its digits is 46656, while the sum is 45.

The square root of 1198899 is about 1094.9424642418. The cubic root of 1198899 is about 106.2333473325.

The spelling of 1198899 in words is "one million, one hundred ninety-eight thousand, eight hundred ninety-nine".