14086991 has 2 divisors, whose sum is σ = 14086992. Its totient is φ = 14086990.

The previous prime is 14086987. The next prime is 14086997. The reversal of 14086991 is 19968041.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (19968041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14086991 - 2² = 14086987 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14086997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7043495 + 7043496.

It is an arithmetic number, because the mean of its divisors is an integer number (7043496).

Almost surely, 2^14086991 is an apocalyptic number.

14086991 is a deficient number, since it is larger than the sum of its proper divisors (1).

14086991 is an equidigital number, since it uses as much as digits as its factorization.

14086991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 14086991 is about 3753.2640461337. The cubic root of 14086991 is about 241.5123881470.

The spelling of 14086991 in words is "fourteen million, eighty-six thousand, nine hundred ninety-one".