85816608 has 48 divisors (see below), whose sum is σ = 230773536. Its totient is φ = 27906560.

The previous prime is 85816583. The next prime is 85816693. The reversal of 85816608 is 80661858.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 85816608.

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, 6966 + ... + 14837.

It is an arithmetic number, because the mean of its divisors is an integer number (4807782).

Almost surely, 2^85816608 is an apocalyptic number.

It is an amenable number.

85816608 is an abundant number, since it is smaller than the sum of its proper divisors (144956928).

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

85816608 is a wasteful number, since it uses less digits than its factorization.

85816608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21857 (or 21849 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 85816608 is about 9263.7253845308. The cubic root of 85816608 is about 441.0865159008.

The spelling of 85816608 in words is "eighty-five million, eight hundred sixteen thousand, six hundred eight".