85497808 has 40 divisors (see below), whose sum is σ = 188577216. Its totient is φ = 37171200.

The previous prime is 85497791. The next prime is 85497823. The reversal of 85497808 is 80879458.

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, 6513 + ... + 14608.

Almost surely, 2^85497808 is an apocalyptic number.

85497808 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

85497808 is an abundant number, since it is smaller than the sum of its proper divisors (103079408).

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

85497808 is a wasteful number, since it uses less digits than its factorization.

85497808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21163 (or 21157 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 85497808 is about 9246.5024739087. The cubic root of 85497808 is about 440.5396409136.

The spelling of 85497808 in words is "eighty-five million, four hundred ninety-seven thousand, eight hundred eight".