8081845 has 8 divisors (see below), whose sum is σ = 9713664. Its totient is φ = 6455184.

The previous prime is 8081839. The next prime is 8081849. The reversal of 8081845 is 5481808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8081845 - 2³ = 8081837 is a prime.

It is a Duffinian number.

8081845 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8081845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081849) 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, 4692 + ... + 6178.

It is an arithmetic number, because the mean of its divisors is an integer number (1214208).

Almost surely, 2^8081845 is an apocalyptic number.

It is an amenable number.

8081845 is a deficient number, since it is larger than the sum of its proper divisors (1631819).

8081845 is a wasteful number, since it uses less digits than its factorization.

8081845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 8081845 is about 2842.8585965538. The cubic root of 8081845 is about 200.6797288927.

The spelling of 8081845 in words is "eight million, eighty-one thousand, eight hundred forty-five".