85304660 has 48 divisors (see below), whose sum is σ = 211800960. Its totient is φ = 28237440.

The previous prime is 85304627. The next prime is 85304663. The reversal of 85304660 is 6640358.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85304663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6446 + ... + 14565.

It is an arithmetic number, because the mean of its divisors is an integer number (4412520).

Almost surely, 2^85304660 is an apocalyptic number.

It is an amenable number.

85304660 is an abundant number, since it is smaller than the sum of its proper divisors (126496300).

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

85304660 is a wasteful number, since it uses less digits than its factorization.

85304660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21056 (or 21054 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 85304660 is about 9236.0521869465. The cubic root of 85304660 is about 440.2076499219.

The spelling of 85304660 in words is "eighty-five million, three hundred four thousand, six hundred sixty".