71845808 has 20 divisors (see below), whose sum is σ = 147390120. Its totient is φ = 33809664.

The previous prime is 71845801. The next prime is 71845843. The reversal of 71845808 is 80854817.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (71845801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131798 + ... + 132341.

It is an arithmetic number, because the mean of its divisors is an integer number (7369506).

Almost surely, 2^71845808 is an apocalyptic number.

It is an amenable number.

71845808 is an abundant number, since it is smaller than the sum of its proper divisors (75544312).

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

71845808 is a wasteful number, since it uses less digits than its factorization.

71845808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264164 (or 264158 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 71845808 is about 8476.1906538256. The cubic root of 71845808 is about 415.7195780243.

Subtracting 71845808 from its reverse (80854817), we obtain a palindrome (9009009).

The spelling of 71845808 in words is "seventy-one million, eight hundred forty-five thousand, eight hundred eight".