14247891 has 24 divisors (see below), whose sum is σ = 24760320. Its totient is φ = 7712496.

The previous prime is 14247847. The next prime is 14247901. The reversal of 14247891 is 19874241.

It is not a de Polignac number, because 14247891 - 2⁷ = 14247763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14247811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4755 + ... + 7148.

It is an arithmetic number, because the mean of its divisors is an integer number (1031680).

Almost surely, 2^14247891 is an apocalyptic number.

14247891 is a deficient number, since it is larger than the sum of its proper divisors (10512429).

14247891 is a wasteful number, since it uses less digits than its factorization.

14247891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11935 (or 11932 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 14247891 is about 3774.6378634248. The cubic root of 14247891 is about 242.4284183099.

The spelling of 14247891 in words is "fourteen million, two hundred forty-seven thousand, eight hundred ninety-one".