14639621 has 2 divisors, whose sum is σ = 14639622. Its totient is φ = 14639620.

The previous prime is 14639609. The next prime is 14639627. The reversal of 14639621 is 12693641.

14639621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14546596 + 93025 = 3814^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 14639621 - 2¹⁸ = 14377477 is a prime.

It is equal to p₉₄₈₉₁₁ and since 14639621 and 948911 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14639627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7319810 + 7319811.

It is an arithmetic number, because the mean of its divisors is an integer number (7319811).

Almost surely, 2^14639621 is an apocalyptic number.

It is an amenable number.

14639621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14639621 is an equidigital number, since it uses as much as digits as its factorization.

14639621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 14639621 is about 3826.1757670029. The cubic root of 14639621 is about 244.6301291090.

The spelling of 14639621 in words is "fourteen million, six hundred thirty-nine thousand, six hundred twenty-one".