42584117 has 4 divisors (see below), whose sum is σ = 43622796. Its totient is φ = 41545440.

The previous prime is 42584057. The next prime is 42584131. The reversal of 42584117 is 71148524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15689521 + 26894596 = 3961^2 + 5186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42584117 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 (42584137) 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, 519278 + ... + 519359.

It is an arithmetic number, because the mean of its divisors is an integer number (10905699).

Almost surely, 2^42584117 is an apocalyptic number.

It is an amenable number.

42584117 is a deficient number, since it is larger than the sum of its proper divisors (1038679).

42584117 is a wasteful number, since it uses less digits than its factorization.

42584117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038678.

The product of its digits is 8960, while the sum is 32.

The square root of 42584117 is about 6525.6506955245. The cubic root of 42584117 is about 349.2066848514.

The spelling of 42584117 in words is "forty-two million, five hundred eighty-four thousand, one hundred seventeen".