42537817 has 8 divisors (see below), whose sum is σ = 49161600. Its totient is φ = 36050784.

The previous prime is 42537799. The next prime is 42537821. The reversal of 42537817 is 71873524.

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

It is not a de Polignac number, because 42537817 - 2¹¹ = 42535769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42537857) 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 7 ways as a sum of consecutive naturals, for example, 33517 + ... + 34762.

It is an arithmetic number, because the mean of its divisors is an integer number (6145200).

Almost surely, 2^42537817 is an apocalyptic number.

It is an amenable number.

42537817 is a deficient number, since it is larger than the sum of its proper divisors (6623783).

42537817 is an equidigital number, since it uses as much as digits as its factorization.

42537817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68375.

The product of its digits is 47040, while the sum is 37.

The square root of 42537817 is about 6522.1021917784. The cubic root of 42537817 is about 349.0800794886.

The spelling of 42537817 in words is "forty-two million, five hundred thirty-seven thousand, eight hundred seventeen".