13924687 has 4 divisors (see below), whose sum is σ = 15913936. Its totient is φ = 11935440.

The previous prime is 13924681. The next prime is 13924693. The reversal of 13924687 is 78642931.

13924687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13924681) and next prime (13924693).

It is a cyclic number.

It is not a de Polignac number, because 13924687 - 2²³ = 5536079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13924681) 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, 994614 + ... + 994627.

It is an arithmetic number, because the mean of its divisors is an integer number (3978484).

Almost surely, 2^13924687 is an apocalyptic number.

13924687 is a deficient number, since it is larger than the sum of its proper divisors (1989249).

13924687 is an equidigital number, since it uses as much as digits as its factorization.

13924687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989248.

The product of its digits is 72576, while the sum is 40.

The square root of 13924687 is about 3731.5796923019. The cubic root of 13924687 is about 240.5812704477.

The spelling of 13924687 in words is "thirteen million, nine hundred twenty-four thousand, six hundred eighty-seven".