14639893 has 2 divisors, whose sum is σ = 14639894. Its totient is φ = 14639892.

The previous prime is 14639881. The next prime is 14639917. The reversal of 14639893 is 39893641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13704804 + 935089 = 3702^2 + 967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14639893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14639803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7319946 + 7319947.

It is an arithmetic number, because the mean of its divisors is an integer number (7319947).

Almost surely, 2^14639893 is an apocalyptic number.

It is an amenable number.

14639893 is a deficient number, since it is larger than the sum of its proper divisors (1).

14639893 is an equidigital number, since it uses as much as digits as its factorization.

14639893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 14639893 is about 3826.2113114673. The cubic root of 14639893 is about 244.6316441524.

The spelling of 14639893 in words is "fourteen million, six hundred thirty-nine thousand, eight hundred ninety-three".