42517686 has 16 divisors (see below), whose sum is σ = 85111344. Its totient is φ = 14159904.

The previous prime is 42517661. The next prime is 42517693. The reversal of 42517686 is 68671524.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6280 + ... + 11156.

It is an arithmetic number, because the mean of its divisors is an integer number (5319459).

Almost surely, 2^42517686 is an apocalyptic number.

42517686 is an abundant number, since it is smaller than the sum of its proper divisors (42593658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42517686 is a wasteful number, since it uses less digits than its factorization.

42517686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335.

The product of its digits is 80640, while the sum is 39.

The square root of 42517686 is about 6520.5587183922. The cubic root of 42517686 is about 349.0250034768.

The spelling of 42517686 in words is "forty-two million, five hundred seventeen thousand, six hundred eighty-six".