16428719 has 2 divisors, whose sum is σ = 16428720. Its totient is φ = 16428718.

The previous prime is 16428707. The next prime is 16428743. The reversal of 16428719 is 91782461.

It is a weak prime.

It is an emirp because it is prime and its reverse (91782461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16428719 - 2¹² = 16424623 is a prime.

It is a super-2 number, since 2×16428719² = 539805615961922, which contains 22 as substring.

It is a Sophie Germain 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 (16428779) 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, 8214359 + 8214360.

It is an arithmetic number, because the mean of its divisors is an integer number (8214360).

Almost surely, 2^16428719 is an apocalyptic number.

16428719 is a deficient number, since it is larger than the sum of its proper divisors (1).

16428719 is an equidigital number, since it uses as much as digits as its factorization.

16428719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 16428719 is about 4053.2356210810. The cubic root of 16428719 is about 254.2150358302.

The spelling of 16428719 in words is "sixteen million, four hundred twenty-eight thousand, seven hundred nineteen".