80847585 has 64 divisors (see below), whose sum is σ = 176924160. Its totient is φ = 34110720.

The previous prime is 80847583. The next prime is 80847593. The reversal of 80847585 is 58574808.

It is not a de Polignac number, because 80847585 - 2¹ = 80847583 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 80847585.

It is not an unprimeable number, because it can be changed into a prime (80847583) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8995 + ... + 15575.

It is an arithmetic number, because the mean of its divisors is an integer number (2764440).

Almost surely, 2^80847585 is an apocalyptic number.

It is an amenable number.

80847585 is an abundant number, since it is smaller than the sum of its proper divisors (96076575).

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

80847585 is a wasteful number, since it uses less digits than its factorization.

80847585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615 (or 6609 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 80847585 is about 8991.5285129949. The cubic root of 80847585 is about 432.4033174023.

The spelling of 80847585 in words is "eighty million, eight hundred forty-seven thousand, five hundred eighty-five".