16622623 has 2 divisors, whose sum is σ = 16622624. Its totient is φ = 16622622.

The previous prime is 16622581. The next prime is 16622647. The reversal of 16622623 is 32622661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16622623 - 2¹⁷ = 16491551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16622591 and 16622600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16622693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8311311 + 8311312.

It is an arithmetic number, because the mean of its divisors is an integer number (8311312).

Almost surely, 2^16622623 is an apocalyptic number.

16622623 is a deficient number, since it is larger than the sum of its proper divisors (1).

16622623 is an equidigital number, since it uses as much as digits as its factorization.

16622623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 16622623 is about 4077.0851107133. The cubic root of 16622623 is about 255.2112717888.

The spelling of 16622623 in words is "sixteen million, six hundred twenty-two thousand, six hundred twenty-three".