16622899 has 2 divisors, whose sum is σ = 16622900. Its totient is φ = 16622898.

The previous prime is 16622863. The next prime is 16622933. The reversal of 16622899 is 99822661.

It is a strong prime.

It is an emirp because it is prime and its reverse (99822661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16622899 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (16622839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8311449 + 8311450.

It is an arithmetic number, because the mean of its divisors is an integer number (8311450).

Almost surely, 2^16622899 is an apocalyptic number.

16622899 is a deficient number, since it is larger than the sum of its proper divisors (1).

16622899 is an equidigital number, since it uses as much as digits as its factorization.

16622899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The square root of 16622899 is about 4077.1189582841. The cubic root of 16622899 is about 255.2126842799.

The spelling of 16622899 in words is "sixteen million, six hundred twenty-two thousand, eight hundred ninety-nine".