14008991 has 8 divisors (see below), whose sum is σ = 14254080. Its totient is φ = 13765752.

The previous prime is 14008987. The next prime is 14008997. The reversal of 14008991 is 19980041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14008991 - 2² = 14008987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14008997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30026 + ... + 30488.

It is an arithmetic number, because the mean of its divisors is an integer number (1781760).

Almost surely, 2^14008991 is an apocalyptic number.

14008991 is a deficient number, since it is larger than the sum of its proper divisors (245089).

14008991 is an equidigital number, since it uses as much as digits as its factorization.

14008991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 14008991 is about 3742.8586668481. The cubic root of 14008991 is about 241.0658096364.

The spelling of 14008991 in words is "fourteen million, eight thousand, nine hundred ninety-one".