42910717 has 4 divisors (see below), whose sum is σ = 42924700. Its totient is φ = 42896736.

The previous prime is 42910711. The next prime is 42910739. The reversal of 42910717 is 71701924.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 30702681 + 12208036 = 5541^2 + 3494^2 .

It is a cyclic number.

It is not a de Polignac number, because 42910717 - 2¹⁵ = 42877949 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 (42910711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168 + ... + 9265.

It is an arithmetic number, because the mean of its divisors is an integer number (10731175).

Almost surely, 2^42910717 is an apocalyptic number.

It is an amenable number.

42910717 is a deficient number, since it is larger than the sum of its proper divisors (13983).

42910717 is an equidigital number, since it uses as much as digits as its factorization.

42910717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13982.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 42910717 is about 6550.6272218773. The cubic root of 42910717 is about 350.0971621403.

The spelling of 42910717 in words is "forty-two million, nine hundred ten thousand, seven hundred seventeen".