42017279 has 2 divisors, whose sum is σ = 42017280. Its totient is φ = 42017278.

The previous prime is 42017273. The next prime is 42017281. The reversal of 42017279 is 97271024.

42017279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42017279 - 2⁸ = 42017023 is a prime.

Together with 42017281, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2548607 and since 42017279 and 2548607 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42017273) 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, 21008639 + 21008640.

It is an arithmetic number, because the mean of its divisors is an integer number (21008640).

Almost surely, 2^42017279 is an apocalyptic number.

42017279 is a deficient number, since it is larger than the sum of its proper divisors (1).

42017279 is an equidigital number, since it uses as much as digits as its factorization.

42017279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 42017279 is about 6482.0736651167. The cubic root of 42017279 is about 347.6503264169.

The spelling of 42017279 in words is "forty-two million, seventeen thousand, two hundred seventy-nine".