8008581 has 16 divisors (see below), whose sum is σ = 12921984. Its totient is φ = 4306944.

The previous prime is 8008579. The next prime is 8008589. The reversal of 8008581 is 1858008.

8008581 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8008581 - 2¹ = 8008579 is a prime.

It is a super-2 number, since 2×8008581² = 128274739267122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8008589) 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, 10860 + ... + 11573.

It is an arithmetic number, because the mean of its divisors is an integer number (807624).

Almost surely, 2^8008581 is an apocalyptic number.

It is an amenable number.

8008581 is a deficient number, since it is larger than the sum of its proper divisors (4913403).

8008581 is a wasteful number, since it uses less digits than its factorization.

8008581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22460.

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 8008581 is about 2829.9436390147. The cubic root of 8008581 is about 200.0714827813.

The spelling of 8008581 in words is "eight million, eight thousand, five hundred eighty-one".