42001717 has 4 divisors (see below), whose sum is σ = 42029280. Its totient is φ = 41974156.

The previous prime is 42001711. The next prime is 42001727. The reversal of 42001717 is 71710024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42001717 - 2³ = 42001709 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 (42001711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11353 + ... + 14590.

It is an arithmetic number, because the mean of its divisors is an integer number (10507320).

Almost surely, 2^42001717 is an apocalyptic number.

It is an amenable number.

42001717 is a deficient number, since it is larger than the sum of its proper divisors (27563).

42001717 is a wasteful number, since it uses less digits than its factorization.

42001717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27562.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 42001717 is about 6480.8731664800. The cubic root of 42001717 is about 347.6074012001.

The spelling of 42001717 in words is "forty-two million, one thousand, seven hundred seventeen".