42217327 has 4 divisors (see below), whose sum is σ = 43115616. Its totient is φ = 41319040.

The previous prime is 42217291. The next prime is 42217339. The reversal of 42217327 is 72371224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42217327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42217295 and 42217304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42217387) 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, 449074 + ... + 449167.

It is an arithmetic number, because the mean of its divisors is an integer number (10778904).

Almost surely, 2^42217327 is an apocalyptic number.

42217327 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42217327 is a deficient number, since it is larger than the sum of its proper divisors (898289).

42217327 is an equidigital number, since it uses as much as digits as its factorization.

42217327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898288.

The product of its digits is 4704, while the sum is 28.

The square root of 42217327 is about 6497.4862062185. The cubic root of 42217327 is about 348.2011844799.

The spelling of 42217327 in words is "forty-two million, two hundred seventeen thousand, three hundred twenty-seven".