42167217 has 8 divisors (see below), whose sum is σ = 56581696. Its totient is φ = 27932112.

The previous prime is 42167207. The next prime is 42167231. The reversal of 42167217 is 71276124.

42167217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42167217 - 2⁴ = 42167201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42167207) 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 in 7 ways as a sum of consecutive naturals, for example, 44293 + ... + 45234.

It is an arithmetic number, because the mean of its divisors is an integer number (7072712).

Almost surely, 2^42167217 is an apocalyptic number.

It is an amenable number.

42167217 is a deficient number, since it is larger than the sum of its proper divisors (14414479).

42167217 is a wasteful number, since it uses less digits than its factorization.

42167217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89687.

The product of its digits is 4704, while the sum is 30.

The square root of 42167217 is about 6493.6289545985. The cubic root of 42167217 is about 348.0633637428.

The spelling of 42167217 in words is "forty-two million, one hundred sixty-seven thousand, two hundred seventeen".