11800198 has 4 divisors (see below), whose sum is σ = 17700300. Its totient is φ = 5900098.

The previous prime is 11800163. The next prime is 11800199. The reversal of 11800198 is 89100811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89100811 = 71 ⋅1254941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11800199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2950048 + ... + 2950051.

It is an arithmetic number, because the mean of its divisors is an integer number (4425075).

Almost surely, 2^11800198 is an apocalyptic number.

11800198 is a deficient number, since it is larger than the sum of its proper divisors (5900102).

11800198 is an equidigital number, since it uses as much as digits as its factorization.

11800198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900101.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 11800198 is about 3435.1416273569. The cubic root of 11800198 is about 227.6650848630.

The spelling of 11800198 in words is "eleven million, eight hundred thousand, one hundred ninety-eight".