11398986 has 24 divisors (see below), whose sum is σ = 24766560. Its totient is φ = 3789096.

The previous prime is 11398967. The next prime is 11398987. The reversal of 11398986 is 68989311.

It is not an unprimeable number, because it can be changed into a prime (11398987) 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, 8425 + ... + 9683.

It is an arithmetic number, because the mean of its divisors is an integer number (1031940).

Almost surely, 2^11398986 is an apocalyptic number.

11398986 is an abundant number, since it is smaller than the sum of its proper divisors (13367574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11398986 is a wasteful number, since it uses less digits than its factorization.

11398986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 1767 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 11398986 is about 3376.2384394471. The cubic root of 11398986 is about 225.0550383875.

It can be divided in two parts, 113 and 98986, that added together give a palindrome (99099).

The spelling of 11398986 in words is "eleven million, three hundred ninety-eight thousand, nine hundred eighty-six".