85486578 has 8 divisors (see below), whose sum is σ = 170973168. Its totient is φ = 28495524.

The previous prime is 85486543. The next prime is 85486579. The reversal of 85486578 is 87568458.

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

85486578 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 85486578.

It is not an unprimeable number, because it can be changed into a prime (85486579) 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, 7123876 + ... + 7123887.

It is an arithmetic number, because the mean of its divisors is an integer number (21371646).

Almost surely, 2^85486578 is an apocalyptic number.

85486578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85486578 is a wasteful number, since it uses less digits than its factorization.

85486578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14247768.

The product of its digits is 2150400, while the sum is 51.

The square root of 85486578 is about 9245.8951973295. The cubic root of 85486578 is about 440.5203520105.

The spelling of 85486578 in words is "eighty-five million, four hundred eighty-six thousand, five hundred seventy-eight".