8871745 has 4 divisors (see below), whose sum is σ = 10646100. Its totient is φ = 7097392.

The previous prime is 8871719. The next prime is 8871757. The reversal of 8871745 is 5471788.

8871745 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 3470769 + 5400976 = 1863^2 + 2324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8871745 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8871698 and 8871707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887170 + ... + 887179.

It is an arithmetic number, because the mean of its divisors is an integer number (2661525).

Almost surely, 2^8871745 is an apocalyptic number.

It is an amenable number.

8871745 is a deficient number, since it is larger than the sum of its proper divisors (1774355).

8871745 is a wasteful number, since it uses less digits than its factorization.

8871745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774354.

The product of its digits is 62720, while the sum is 40.

The square root of 8871745 is about 2978.5474647888. The cubic root of 8871745 is about 207.0155728986.

The spelling of 8871745 in words is "eight million, eight hundred seventy-one thousand, seven hundred forty-five".