14497891 has 2 divisors, whose sum is σ = 14497892. Its totient is φ = 14497890.

The previous prime is 14497877. The next prime is 14497897. The reversal of 14497891 is 19879441.

It is a strong prime.

It is an emirp because it is prime and its reverse (19879441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14497891 is a prime.

It is not a weakly prime, because it can be changed into another prime (14497897) 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 as a sum of consecutive naturals, namely, 7248945 + 7248946.

It is an arithmetic number, because the mean of its divisors is an integer number (7248946).

Almost surely, 2^14497891 is an apocalyptic number.

14497891 is a deficient number, since it is larger than the sum of its proper divisors (1).

14497891 is an equidigital number, since it uses as much as digits as its factorization.

14497891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 43.

The square root of 14497891 is about 3807.6096175947. The cubic root of 14497891 is about 243.8381249623.

The spelling of 14497891 in words is "fourteen million, four hundred ninety-seven thousand, eight hundred ninety-one".