11387868 has 12 divisors (see below), whose sum is σ = 26571720. Its totient is φ = 3795952.

The previous prime is 11387867. The next prime is 11387869. The reversal of 11387868 is 86878311.

It is an interprime number because it is at equal distance from previous prime (11387867) and next prime (11387869).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11387861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474483 + ... + 474506.

It is an arithmetic number, because the mean of its divisors is an integer number (2214310).

Almost surely, 2^11387868 is an apocalyptic number.

It is an amenable number.

11387868 is an abundant number, since it is smaller than the sum of its proper divisors (15183852).

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

11387868 is a wasteful number, since it uses less digits than its factorization.

11387868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948996 (or 948994 counting only the distinct ones).

The product of its digits is 64512, while the sum is 42.

The square root of 11387868 is about 3374.5915308375. The cubic root of 11387868 is about 224.9818454488.

The spelling of 11387868 in words is "eleven million, three hundred eighty-seven thousand, eight hundred sixty-eight".