13863424 has 20 divisors (see below), whose sum is σ = 27700794. Its totient is φ = 6931456.

The previous prime is 13863413. The next prime is 13863427. The reversal of 13863424 is 42436831.

It can be written as a sum of positive squares in only one way, i.e., 9734400 + 4129024 = 3120^2 + 2032^2 .

It is not an unprimeable number, because it can be changed into a prime (13863427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13027 + ... + 14050.

Almost surely, 2^13863424 is an apocalyptic number.

It is an amenable number.

13863424 is a deficient number, since it is larger than the sum of its proper divisors (13837370).

13863424 is an frugal number, since it uses more digits than its factorization.

13863424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27095 (or 27079 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 13863424 is about 3723.3619217046. The cubic root of 13863424 is about 240.2279316095.

The spelling of 13863424 in words is "thirteen million, eight hundred sixty-three thousand, four hundred twenty-four".