14191897 has 4 divisors (see below), whose sum is σ = 14808960. Its totient is φ = 13574836.

The previous prime is 14191883. The next prime is 14191907. The reversal of 14191897 is 79819141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79819141 = 31 ⋅2574811.

It is a cyclic number.

It is not a de Polignac number, because 14191897 - 2¹⁵ = 14159129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14191847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308497 + ... + 308542.

It is an arithmetic number, because the mean of its divisors is an integer number (3702240).

Almost surely, 2^14191897 is an apocalyptic number.

It is an amenable number.

14191897 is a deficient number, since it is larger than the sum of its proper divisors (617063).

14191897 is an equidigital number, since it uses as much as digits as its factorization.

14191897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617062.

The product of its digits is 18144, while the sum is 40.

The square root of 14191897 is about 3767.2134263936. The cubic root of 14191897 is about 242.1104213432.

The spelling of 14191897 in words is "fourteen million, one hundred ninety-one thousand, eight hundred ninety-seven".