84442517 has 8 divisors (see below), whose sum is σ = 89000160. Its totient is φ = 79896240.

The previous prime is 84442513. The next prime is 84442529. The reversal of 84442517 is 71524448.

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

It is a cyclic number.

It is not a de Polignac number, because 84442517 - 2² = 84442513 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 (84442513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15518 + ... + 20240.

It is an arithmetic number, because the mean of its divisors is an integer number (11125020).

Almost surely, 2^84442517 is an apocalyptic number.

It is an amenable number.

84442517 is a deficient number, since it is larger than the sum of its proper divisors (4557643).

84442517 is a wasteful number, since it uses less digits than its factorization.

84442517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683.

The product of its digits is 35840, while the sum is 35.

The square root of 84442517 is about 9189.2609604908. The cubic root of 84442517 is about 438.7196197069.

The spelling of 84442517 in words is "eighty-four million, four hundred forty-two thousand, five hundred seventeen".