42617717 has 8 divisors (see below), whose sum is σ = 43075032. Its totient is φ = 42163200.

The previous prime is 42617713. The next prime is 42617719. The reversal of 42617717 is 71771624.

42617717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8031556 + 34586161 = 2834^2 + 5881^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42617717 - 2² = 42617713 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 (42617713) 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, 43133 + ... + 44109.

It is an arithmetic number, because the mean of its divisors is an integer number (5384379).

Almost surely, 2^42617717 is an apocalyptic number.

It is an amenable number.

42617717 is a deficient number, since it is larger than the sum of its proper divisors (457315).

42617717 is a wasteful number, since it uses less digits than its factorization.

42617717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399.

The product of its digits is 16464, while the sum is 35.

The square root of 42617717 is about 6528.2246438063. The cubic root of 42617717 is about 349.2985051577.

It can be divided in two parts, 42617 and 717, that added together give a palindrome (43334).

The spelling of 42617717 in words is "forty-two million, six hundred seventeen thousand, seven hundred seventeen".