8185872 has 20 divisors (see below), whose sum is σ = 21146960. Its totient is φ = 2728608.

The previous prime is 8185819. The next prime is 8185873. The reversal of 8185872 is 2785818.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 8185872.

It is not an unprimeable number, because it can be changed into a prime (8185873) 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, 85222 + ... + 85317.

It is an arithmetic number, because the mean of its divisors is an integer number (1057348).

Almost surely, 2^8185872 is an apocalyptic number.

It is an amenable number.

8185872 is an abundant number, since it is smaller than the sum of its proper divisors (12961088).

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

8185872 is a wasteful number, since it uses less digits than its factorization.

8185872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170550 (or 170544 counting only the distinct ones).

The product of its digits is 35840, while the sum is 39.

The square root of 8185872 is about 2861.0962933813. The cubic root of 8185872 is about 201.5370898441.

The spelling of 8185872 in words is "eight million, one hundred eighty-five thousand, eight hundred seventy-two".