16422247 has 2 divisors, whose sum is σ = 16422248. Its totient is φ = 16422246.

The previous prime is 16422233. The next prime is 16422257. The reversal of 16422247 is 74222461.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (74222461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16422247 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 (16422227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8211123 + 8211124.

It is an arithmetic number, because the mean of its divisors is an integer number (8211124).

Almost surely, 2^16422247 is an apocalyptic number.

16422247 is a deficient number, since it is larger than the sum of its proper divisors (1).

16422247 is an equidigital number, since it uses as much as digits as its factorization.

16422247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 28.

The square root of 16422247 is about 4052.4371679275. The cubic root of 16422247 is about 254.1816492586.

The spelling of 16422247 in words is "sixteen million, four hundred twenty-two thousand, two hundred forty-seven".