8271980 has 24 divisors (see below), whose sum is σ = 17469312. Its totient is φ = 3290112.

The previous prime is 8271959. The next prime is 8271983. The reversal of 8271980 is 891728.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8271980.

It is not an unprimeable number, because it can be changed into a prime (8271983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2789 + ... + 4931.

It is an arithmetic number, because the mean of its divisors is an integer number (727888).

Almost surely, 2^8271980 is an apocalyptic number.

It is an amenable number.

8271980 is an abundant number, since it is smaller than the sum of its proper divisors (9197332).

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

8271980 is a wasteful number, since it uses less digits than its factorization.

8271980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 8271980 is about 2876.1050050372. The cubic root of 8271980 is about 202.2412892880.

The spelling of 8271980 in words is "eight million, two hundred seventy-one thousand, nine hundred eighty".