14000639 has 16 divisors (see below), whose sum is σ = 15513120. Its totient is φ = 12579840.

The previous prime is 14000627. The next prime is 14000647. The reversal of 14000639 is 93600041.

It is a cyclic number.

It is not a de Polignac number, because 14000639 - 2⁸ = 14000383 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 (14000669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36752 + ... + 37130.

It is an arithmetic number, because the mean of its divisors is an integer number (969570).

Almost surely, 2^14000639 is an apocalyptic number.

14000639 is a deficient number, since it is larger than the sum of its proper divisors (1512481).

14000639 is a wasteful number, since it uses less digits than its factorization.

14000639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 14000639 is about 3741.7427757664. The cubic root of 14000639 is about 241.0178932210.

The spelling of 14000639 in words is "fourteen million, six hundred thirty-nine", and thus it is an aban number.