14297991 has 4 divisors (see below), whose sum is σ = 19063992. Its totient is φ = 9531992.

The previous prime is 14297989. The next prime is 14298007. The reversal of 14297991 is 19979241.

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 14297991 - 2¹ = 14297989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14297981) 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, 2382996 + ... + 2383001.

It is an arithmetic number, because the mean of its divisors is an integer number (4765998).

Almost surely, 2^14297991 is an apocalyptic number.

14297991 is a deficient number, since it is larger than the sum of its proper divisors (4766001).

14297991 is an equidigital number, since it uses as much as digits as its factorization.

14297991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4766000.

The product of its digits is 40824, while the sum is 42.

The square root of 14297991 is about 3781.2684379716. The cubic root of 14297991 is about 242.7122370526.

The spelling of 14297991 in words is "fourteen million, two hundred ninety-seven thousand, nine hundred ninety-one".