85464580 has 24 divisors (see below), whose sum is σ = 180474840. Its totient is φ = 33995520.

The previous prime is 85464571. The next prime is 85464581. The reversal of 85464580 is 8546458.

It can be written as a sum of positive squares in 4 ways, for example, as 3779136 + 81685444 = 1944^2 + 9038^2 .

It is not an unprimeable number, because it can be changed into a prime (85464581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8185 + ... + 15424.

It is an arithmetic number, because the mean of its divisors is an integer number (7519785).

Almost surely, 2^85464580 is an apocalyptic number.

It is an amenable number.

85464580 is an abundant number, since it is smaller than the sum of its proper divisors (95010260).

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

85464580 is a wasteful number, since it uses less digits than its factorization.

85464580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23799 (or 23797 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 85464580 is about 9244.7055118051. The cubic root of 85464580 is about 440.4825628501.

The spelling of 85464580 in words is "eighty-five million, four hundred sixty-four thousand, five hundred eighty".