14401993 has 2 divisors, whose sum is σ = 14401994. Its totient is φ = 14401992.

The previous prime is 14401987. The next prime is 14402027. The reversal of 14401993 is 39910441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14235529 + 166464 = 3773^2 + 408^2 .

It is a cyclic number.

It is not a de Polignac number, because 14401993 - 2¹³ = 14393801 is a prime.

It is not a weakly prime, because it can be changed into another prime (14404993) 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 as a sum of consecutive naturals, namely, 7200996 + 7200997.

It is an arithmetic number, because the mean of its divisors is an integer number (7200997).

Almost surely, 2^14401993 is an apocalyptic number.

It is an amenable number.

14401993 is a deficient number, since it is larger than the sum of its proper divisors (1).

14401993 is an equidigital number, since it uses as much as digits as its factorization.

14401993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 14401993 is about 3794.9957839239. The cubic root of 14401993 is about 243.2993032205.

The spelling of 14401993 in words is "fourteen million, four hundred one thousand, nine hundred ninety-three".