14390287 has 4 divisors (see below), whose sum is σ = 14462800. Its totient is φ = 14317776.

The previous prime is 14390269. The next prime is 14390309. The reversal of 14390287 is 78209341.

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

It is a cyclic number.

It is not a de Polignac number, because 14390287 - 2²³ = 6001679 is a prime.

It is a super-4 number, since 4×14390287⁴ (a number of 30 digits) contains 4444 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 (14390227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35958 + ... + 36355.

It is an arithmetic number, because the mean of its divisors is an integer number (3615700).

Almost surely, 2^14390287 is an apocalyptic number.

14390287 is a deficient number, since it is larger than the sum of its proper divisors (72513).

14390287 is an equidigital number, since it uses as much as digits as its factorization.

14390287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72512.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 14390287 is about 3793.4531761971. The cubic root of 14390287 is about 243.2333671233.

The spelling of 14390287 in words is "fourteen million, three hundred ninety thousand, two hundred eighty-seven".