14027991 has 16 divisors (see below), whose sum is σ = 19198848. Its totient is φ = 9108000.

The previous prime is 14027983. The next prime is 14028011. The reversal of 14027991 is 19972041.

It is not a de Polignac number, because 14027991 - 2³ = 14027983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14027971) 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 15 ways as a sum of consecutive naturals, for example, 19956 + ... + 20646.

It is an arithmetic number, because the mean of its divisors is an integer number (1199928).

Almost surely, 2^14027991 is an apocalyptic number.

14027991 is a deficient number, since it is larger than the sum of its proper divisors (5170857).

14027991 is a wasteful number, since it uses less digits than its factorization.

14027991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 14027991 is about 3745.3959737256. The cubic root of 14027991 is about 241.1747439927.

The spelling of 14027991 in words is "fourteen million, twenty-seven thousand, nine hundred ninety-one".