14627621 has 2 divisors, whose sum is σ = 14627622. Its totient is φ = 14627620.

The previous prime is 14627603. The next prime is 14627623. The reversal of 14627621 is 12672641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14250625 + 376996 = 3775^2 + 614^2 .

It is an emirp because it is prime and its reverse (12672641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14627621 is a prime.

It is a super-2 number, since 2×14627621² = 427934592239282, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 14627623, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is equal to p₉₄₈₁₇₀ and since 14627621 and 948170 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 (14627623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7313810 + 7313811.

It is an arithmetic number, because the mean of its divisors is an integer number (7313811).

Almost surely, 2^14627621 is an apocalyptic number.

It is an amenable number.

14627621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14627621 is an equidigital number, since it uses as much as digits as its factorization.

14627621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 14627621 is about 3824.6073001028. The cubic root of 14627621 is about 244.5632702743.

The spelling of 14627621 in words is "fourteen million, six hundred twenty-seven thousand, six hundred twenty-one".