11687924 has 6 divisors (see below), whose sum is σ = 20453874. Its totient is φ = 5843960.

The previous prime is 11687917. The next prime is 11687939. The reversal of 11687924 is 42978611.

It can be written as a sum of positive squares in only one way, i.e., 11437924 + 250000 = 3382^2 + 500^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1460987 + ... + 1460994.

It is an arithmetic number, because the mean of its divisors is an integer number (3408979).

Almost surely, 2^11687924 is an apocalyptic number.

It is an amenable number.

11687924 is a deficient number, since it is larger than the sum of its proper divisors (8765950).

11687924 is a wasteful number, since it uses less digits than its factorization.

11687924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921985 (or 2921983 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 11687924 is about 3418.7605941335. The cubic root of 11687924 is about 226.9407363388.

The spelling of 11687924 in words is "eleven million, six hundred eighty-seven thousand, nine hundred twenty-four".