11398898 has 16 divisors (see below), whose sum is σ = 20569920. Its totient is φ = 4628016.

The previous prime is 11398889. The next prime is 11398921. The reversal of 11398898 is 89889311.

It is a happy number.

It is a super-2 number, since 2×11398898² = 259869751228808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21161 + ... + 21692.

It is an arithmetic number, because the mean of its divisors is an integer number (1285620).

Almost surely, 2^11398898 is an apocalyptic number.

11398898 is a deficient number, since it is larger than the sum of its proper divisors (9171022).

11398898 is a wasteful number, since it uses less digits than its factorization.

11398898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42881.

The product of its digits is 124416, while the sum is 47.

The square root of 11398898 is about 3376.2254071670. The cubic root of 11398898 is about 225.0544592455.

The spelling of 11398898 in words is "eleven million, three hundred ninety-eight thousand, eight hundred ninety-eight".