42816679 has 2 divisors, whose sum is σ = 42816680. Its totient is φ = 42816678.

The previous prime is 42816667. The next prime is 42816701. The reversal of 42816679 is 97661824.

42816679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42816679 - 2¹¹ = 42814631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42816649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21408339 + 21408340.

It is an arithmetic number, because the mean of its divisors is an integer number (21408340).

Almost surely, 2^42816679 is an apocalyptic number.

42816679 is a deficient number, since it is larger than the sum of its proper divisors (1).

42816679 is an equidigital number, since it uses as much as digits as its factorization.

42816679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 42816679 is about 6543.4454991235. The cubic root of 42816679 is about 349.8412313909.

The spelling of 42816679 in words is "forty-two million, eight hundred sixteen thousand, six hundred seventy-nine".