14217391 has 8 divisors (see below), whose sum is σ = 14626304. Its totient is φ = 13812120.

The previous prime is 14217383. The next prime is 14217403. The reversal of 14217391 is 19371241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14217391 - 2³ = 14217383 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 (14217191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8290 + ... + 9856.

It is an arithmetic number, because the mean of its divisors is an integer number (1828288).

Almost surely, 2^14217391 is an apocalyptic number.

14217391 is a deficient number, since it is larger than the sum of its proper divisors (408913).

14217391 is a wasteful number, since it uses less digits than its factorization.

14217391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821.

The product of its digits is 1512, while the sum is 28.

The square root of 14217391 is about 3770.5955762983. The cubic root of 14217391 is about 242.2553084996.

The spelling of 14217391 in words is "fourteen million, two hundred seventeen thousand, three hundred ninety-one".