1198871 has 4 divisors (see below), whose sum is σ = 1201200. Its totient is φ = 1196544.

The previous prime is 1198867. The next prime is 1198877. The reversal of 1198871 is 1788911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1198871 - 2² = 1198867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198877) 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, 11 + ... + 1548.

It is an arithmetic number, because the mean of its divisors is an integer number (300300).

2^1198871 is an apocalyptic number.

1198871 is a deficient number, since it is larger than the sum of its proper divisors (2329).

1198871 is an equidigital number, since it uses as much as digits as its factorization.

1198871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328.

The product of its digits is 4032, while the sum is 35.

The square root of 1198871 is about 1094.9296781072. The cubic root of 1198871 is about 106.2325203079.

The spelling of 1198871 in words is "one million, one hundred ninety-eight thousand, eight hundred seventy-one".