42068917 has 8 divisors (see below), whose sum is σ = 46274112. Its totient is φ = 38243260.

The previous prime is 42068893. The next prime is 42068927. The reversal of 42068917 is 71986024.

It is not a de Polignac number, because 42068917 - 2¹⁵ = 42036149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42068927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14473 + ... + 17134.

It is an arithmetic number, because the mean of its divisors is an integer number (5784264).

Almost surely, 2^42068917 is an apocalyptic number.

It is an amenable number.

42068917 is a deficient number, since it is larger than the sum of its proper divisors (4205195).

42068917 is an equidigital number, since it uses as much as digits as its factorization.

42068917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31640 (or 31618 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 42068917 is about 6486.0555810138. The cubic root of 42068917 is about 347.7926854563.

The spelling of 42068917 in words is "forty-two million, sixty-eight thousand, nine hundred seventeen".