11618894 has 12 divisors (see below), whose sum is σ = 19939992. Its totient is φ = 4974060.

The previous prime is 11618891. The next prime is 11618897. The reversal of 11618894 is 49881611.

It is an interprime number because it is at equal distance from previous prime (11618891) and next prime (11618897).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11618891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12299 + ... + 13209.

It is an arithmetic number, because the mean of its divisors is an integer number (1661666).

Almost surely, 2^11618894 is an apocalyptic number.

11618894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11618894 is a deficient number, since it is larger than the sum of its proper divisors (8321098).

11618894 is an frugal number, since it uses more digits than its factorization.

11618894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831 (or 920 counting only the distinct ones).

The product of its digits is 13824, while the sum is 38.

The square root of 11618894 is about 3408.6498793511. The cubic root of 11618894 is about 226.4930759530.

The spelling of 11618894 in words is "eleven million, six hundred eighteen thousand, eight hundred ninety-four".