14006399 has 4 divisors (see below), whose sum is σ = 15279720. Its totient is φ = 12733080.

The previous prime is 14006381. The next prime is 14006411. The reversal of 14006399 is 99360041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99360041 = 11 ⋅9032731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14006399 is a prime.

It is a super-3 number, since 3×14006399³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14006309) 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, 636644 + ... + 636665.

It is an arithmetic number, because the mean of its divisors is an integer number (3819930).

Almost surely, 2^14006399 is an apocalyptic number.

14006399 is a deficient number, since it is larger than the sum of its proper divisors (1273321).

14006399 is a wasteful number, since it uses less digits than its factorization.

14006399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273320.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 14006399 is about 3742.5123914291. The cubic root of 14006399 is about 241.0509410633.

The spelling of 14006399 in words is "fourteen million, six thousand, three hundred ninety-nine".