84418539 has 8 divisors (see below), whose sum is σ = 118482240. Its totient is φ = 53316936.

The previous prime is 84418517. The next prime is 84418541. The reversal of 84418539 is 93581448.

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

It is not a de Polignac number, because 84418539 - 2⁸ = 84418283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84418539.

It is not an unprimeable number, because it can be changed into a prime (84418339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740457 + ... + 740570.

It is an arithmetic number, because the mean of its divisors is an integer number (14810280).

Almost surely, 2^84418539 is an apocalyptic number.

84418539 is a deficient number, since it is larger than the sum of its proper divisors (34063701).

84418539 is a wasteful number, since it uses less digits than its factorization.

84418539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481049.

The product of its digits is 138240, while the sum is 42.

The square root of 84418539 is about 9187.9561927558. The cubic root of 84418539 is about 438.6780900159.

The spelling of 84418539 in words is "eighty-four million, four hundred eighteen thousand, five hundred thirty-nine".