11198649 has 16 divisors (see below), whose sum is σ = 18616320. Its totient is φ = 5817360.

The previous prime is 11198599. The next prime is 11198687. The reversal of 11198649 is 94689111.

11198649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11198649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11198249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24009 + ... + 24470.

It is an arithmetic number, because the mean of its divisors is an integer number (1163520).

Almost surely, 2^11198649 is an apocalyptic number.

It is an amenable number.

11198649 is a deficient number, since it is larger than the sum of its proper divisors (7417671).

11198649 is a wasteful number, since it uses less digits than its factorization.

11198649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48500.

The product of its digits is 15552, while the sum is 39.

The square root of 11198649 is about 3346.4382558177. The cubic root of 11198649 is about 223.7287919310.

The spelling of 11198649 in words is "eleven million, one hundred ninety-eight thousand, six hundred forty-nine".