8143960 has 64 divisors (see below), whose sum is σ = 20321280. Its totient is φ = 2912640.

The previous prime is 8143939. The next prime is 8143987. The reversal of 8143960 is 693418.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36409 + ... + 36631.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

Almost surely, 2^8143960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8143960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10160640).

8143960 is an abundant number, since it is smaller than the sum of its proper divisors (12177320).

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

8143960 is a wasteful number, since it uses less digits than its factorization.

8143960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 8143960 is about 2853.7624287947. The cubic root of 8143960 is about 201.1925417543.

It can be divided in two parts, 814 and 3960, that added together give a palindrome (4774).

The spelling of 8143960 in words is "eight million, one hundred forty-three thousand, nine hundred sixty".