16021679 has 2 divisors, whose sum is σ = 16021680. Its totient is φ = 16021678.

The previous prime is 16021673. The next prime is 16021751. The reversal of 16021679 is 97612061.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16021679 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 (16021673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8010839 + 8010840.

It is an arithmetic number, because the mean of its divisors is an integer number (8010840).

Almost surely, 2^16021679 is an apocalyptic number.

16021679 is a deficient number, since it is larger than the sum of its proper divisors (1).

16021679 is an equidigital number, since it uses as much as digits as its factorization.

16021679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 16021679 is about 4002.7089576935. The cubic root of 16021679 is about 252.0979662354.

The spelling of 16021679 in words is "sixteen million, twenty-one thousand, six hundred seventy-nine".