84985618 has 8 divisors (see below), whose sum is σ = 134977212. Its totient is φ = 39993216.

The previous prime is 84985597. The next prime is 84985643. The reversal of 84985618 is 81658948.

It can be written as a sum of positive squares in 2 ways, for example, as 62678889 + 22306729 = 7917^2 + 4723^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1249755 + ... + 1249822.

Almost surely, 2^84985618 is an apocalyptic number.

84985618 is a deficient number, since it is larger than the sum of its proper divisors (49991594).

84985618 is a wasteful number, since it uses less digits than its factorization.

84985618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499596.

The product of its digits is 552960, while the sum is 49.

The square root of 84985618 is about 9218.7644508361. The cubic root of 84985618 is about 439.6581676977.

The spelling of 84985618 in words is "eighty-four million, nine hundred eighty-five thousand, six hundred eighteen".