11857768 has 32 divisors (see below), whose sum is σ = 24179400. Its totient is φ = 5419008.

The previous prime is 11857763. The next prime is 11857777. The reversal of 11857768 is 86775811.

It can be written as a sum of positive squares in 4 ways, for example, as 3319684 + 8538084 = 1822^2 + 2922^2 .

It is not an unprimeable number, because it can be changed into a prime (11857763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11248 + ... + 12256.

Almost surely, 2^11857768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11857768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12089700).

11857768 is an abundant number, since it is smaller than the sum of its proper divisors (12321632).

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

11857768 is a wasteful number, since it uses less digits than its factorization.

11857768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1137 counting only the distinct ones).

The product of its digits is 94080, while the sum is 43.

The square root of 11857768 is about 3443.5109989660. The cubic root of 11857768 is about 228.0347233460.

It can be divided in two parts, 1 and 1857768, that added together give a square (1857769 = 1363²).

The spelling of 11857768 in words is "eleven million, eight hundred fifty-seven thousand, seven hundred sixty-eight".