16622407 has 2 divisors, whose sum is σ = 16622408. Its totient is φ = 16622406.

The previous prime is 16622393. The next prime is 16622513. The reversal of 16622407 is 70422661.

It is a weak prime.

It is an emirp because it is prime and its reverse (70422661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16622407 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16622707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8311203 + 8311204.

It is an arithmetic number, because the mean of its divisors is an integer number (8311204).

Almost surely, 2^16622407 is an apocalyptic number.

16622407 is a deficient number, since it is larger than the sum of its proper divisors (1).

16622407 is an equidigital number, since it uses as much as digits as its factorization.

16622407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 16622407 is about 4077.0586211140. The cubic root of 16622407 is about 255.2101663501.

The spelling of 16622407 in words is "sixteen million, six hundred twenty-two thousand, four hundred seven".