442116679 has 2 divisors, whose sum is σ = 442116680. Its totient is φ = 442116678.

The previous prime is 442116641. The next prime is 442116683. The reversal of 442116679 is 976611244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442116679 - 2⁹ = 442116167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442116179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221058339 + 221058340.

It is an arithmetic number, because the mean of its divisors is an integer number (221058340).

Almost surely, 2^442116679 is an apocalyptic number.

442116679 is a deficient number, since it is larger than the sum of its proper divisors (1).

442116679 is an equidigital number, since it uses as much as digits as its factorization.

442116679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 442116679 is about 21026.5707855561. The cubic root of 442116679 is about 761.8081824641.

The spelling of 442116679 in words is "four hundred forty-two million, one hundred sixteen thousand, six hundred seventy-nine".