42017867 has 2 divisors, whose sum is σ = 42017868. Its totient is φ = 42017866.

The previous prime is 42017831. The next prime is 42017909. The reversal of 42017867 is 76871024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42017867 - 2⁸ = 42017611 is a prime.

It is a super-2 number, since 2×42017867² = 3531002294459378, which contains 22 as substring.

It is a Chen prime.

It is equal to p_2548646 and since 42017867 and 2548646 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42017827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21008933 + 21008934.

It is an arithmetic number, because the mean of its divisors is an integer number (21008934).

Almost surely, 2^42017867 is an apocalyptic number.

42017867 is a deficient number, since it is larger than the sum of its proper divisors (1).

42017867 is an equidigital number, since it uses as much as digits as its factorization.

42017867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 42017867 is about 6482.1190208141. The cubic root of 42017867 is about 347.6519481104.

The spelling of 42017867 in words is "forty-two million, seventeen thousand, eight hundred sixty-seven".