16628071 has 2 divisors, whose sum is σ = 16628072. Its totient is φ = 16628070.

The previous prime is 16628069. The next prime is 16628077. The reversal of 16628071 is 17082661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16628071 - 2¹ = 16628069 is a prime.

Together with 16628069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16628077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8314035 + 8314036.

It is an arithmetic number, because the mean of its divisors is an integer number (8314036).

Almost surely, 2^16628071 is an apocalyptic number.

16628071 is a deficient number, since it is larger than the sum of its proper divisors (1).

16628071 is an equidigital number, since it uses as much as digits as its factorization.

16628071 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 31.

The square root of 16628071 is about 4077.7531803678. The cubic root of 16628071 is about 255.2391502438.

The spelling of 16628071 in words is "sixteen million, six hundred twenty-eight thousand, seventy-one".