85645208 has 32 divisors (see below), whose sum is σ = 175977360. Its totient is φ = 38753280.

The previous prime is 85645199. The next prime is 85645247. The reversal of 85645208 is 80254658.

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, 18416 + ... + 22592.

Almost surely, 2^85645208 is an apocalyptic number.

85645208 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

85645208 is an abundant number, since it is smaller than the sum of its proper divisors (90332152).

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

85645208 is a wasteful number, since it uses less digits than its factorization.

85645208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427 (or 4423 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 85645208 is about 9254.4696228363. The cubic root of 85645208 is about 440.7926620671.

It can be divided in two parts, 856 and 45208, that added together give a palindrome (46064).

The spelling of 85645208 in words is "eighty-five million, six hundred forty-five thousand, two hundred eight".