85418815 has 8 divisors (see below), whose sum is σ = 103251600. Its totient is φ = 67835712.

The previous prime is 85418791. The next prime is 85418821. The reversal of 85418815 is 51881458.

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 85418815 - 2⁵ = 85418783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61665 + ... + 63034.

It is an arithmetic number, because the mean of its divisors is an integer number (12906450).

Almost surely, 2^85418815 is an apocalyptic number.

85418815 is a deficient number, since it is larger than the sum of its proper divisors (17832785).

85418815 is a wasteful number, since it uses less digits than its factorization.

85418815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124841.

The product of its digits is 51200, while the sum is 40.

The square root of 85418815 is about 9242.2299798263. The cubic root of 85418815 is about 440.4039248779.

The spelling of 85418815 in words is "eighty-five million, four hundred eighteen thousand, eight hundred fifteen".