14420621 has 2 divisors, whose sum is σ = 14420622. Its totient is φ = 14420620.

The previous prime is 14420599. The next prime is 14420663. The reversal of 14420621 is 12602441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8491396 + 5929225 = 2914^2 + 2435^2 .

It is a cyclic number.

It is not a de Polignac number, because 14420621 - 2¹⁴ = 14404237 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 14420593 and 14420602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14420521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7210310 + 7210311.

It is an arithmetic number, because the mean of its divisors is an integer number (7210311).

Almost surely, 2^14420621 is an apocalyptic number.

It is an amenable number.

14420621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14420621 is an equidigital number, since it uses as much as digits as its factorization.

14420621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 14420621 is about 3797.4492755006. The cubic root of 14420621 is about 243.4041550699.

The spelling of 14420621 in words is "fourteen million, four hundred twenty thousand, six hundred twenty-one".