8871845 has 4 divisors (see below), whose sum is σ = 10646220. Its totient is φ = 7097472.

The previous prime is 8871833. The next prime is 8871847. The reversal of 8871845 is 5481788.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5189284 + 3682561 = 2278^2 + 1919^2 .

It is a cyclic number.

It is not a de Polignac number, because 8871845 - 2⁶ = 8871781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8871847) 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, 887180 + ... + 887189.

It is an arithmetic number, because the mean of its divisors is an integer number (2661555).

Almost surely, 2^8871845 is an apocalyptic number.

It is an amenable number.

8871845 is a deficient number, since it is larger than the sum of its proper divisors (1774375).

8871845 is a wasteful number, since it uses less digits than its factorization.

8871845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774374.

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

The square root of 8871845 is about 2978.5642514473. The cubic root of 8871845 is about 207.0163507042.

The spelling of 8871845 in words is "eight million, eight hundred seventy-one thousand, eight hundred forty-five".