42504717 has 4 divisors (see below), whose sum is σ = 56672960. Its totient is φ = 28336476.

The previous prime is 42504697. The next prime is 42504727. The reversal of 42504717 is 71740524.

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 not a de Polignac number, because 42504717 - 2¹² = 42500621 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 (42504727) 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, 7084117 + ... + 7084122.

It is an arithmetic number, because the mean of its divisors is an integer number (14168240).

Almost surely, 2^42504717 is an apocalyptic number.

It is an amenable number.

42504717 is a deficient number, since it is larger than the sum of its proper divisors (14168243).

42504717 is a wasteful number, since it uses less digits than its factorization.

42504717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14168242.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 42504717 is about 6519.5641725502. The cubic root of 42504717 is about 348.9895126336.

The spelling of 42504717 in words is "forty-two million, five hundred four thousand, seven hundred seventeen".