42607217 has 4 divisors (see below), whose sum is σ = 42889536. Its totient is φ = 42324900.

The previous prime is 42607207. The next prime is 42607249. The reversal of 42607217 is 71270624.

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 a cyclic number.

It is not a de Polignac number, because 42607217 - 2¹⁴ = 42590833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42607217.

It is not an unprimeable number, because it can be changed into a prime (42607207) 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, 140933 + ... + 141234.

It is an arithmetic number, because the mean of its divisors is an integer number (10722384).

Almost surely, 2^42607217 is an apocalyptic number.

It is an amenable number.

42607217 is a deficient number, since it is larger than the sum of its proper divisors (282319).

42607217 is a wasteful number, since it uses less digits than its factorization.

42607217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282318.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 42607217 is about 6527.4203939995. The cubic root of 42607217 is about 349.2698164979.

It can be divided in two parts, 42607 and 217, that added together give a palindrome (42824).

The spelling of 42607217 in words is "forty-two million, six hundred seven thousand, two hundred seventeen".