11687444 has 6 divisors (see below), whose sum is σ = 20453034. Its totient is φ = 5843720.

The previous prime is 11687441. The next prime is 11687453. The reversal of 11687444 is 44478611.

It can be written as a sum of positive squares in only one way, i.e., 11303044 + 384400 = 3362^2 + 620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11687441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1460927 + ... + 1460934.

It is an arithmetic number, because the mean of its divisors is an integer number (3408839).

Almost surely, 2^11687444 is an apocalyptic number.

It is an amenable number.

11687444 is a deficient number, since it is larger than the sum of its proper divisors (8765590).

11687444 is a wasteful number, since it uses less digits than its factorization.

11687444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921865 (or 2921863 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 11687444 is about 3418.6903925334. The cubic root of 11687444 is about 226.9376296267.

The spelling of 11687444 in words is "eleven million, six hundred eighty-seven thousand, four hundred forty-four".