8101980 has 144 divisors (see below), whose sum is σ = 27256320. Its totient is φ = 1938816.

The previous prime is 8101967. The next prime is 8101981. The reversal of 8101980 is 891018.

8101980 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8101981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78609 + ... + 78711.

It is an arithmetic number, because the mean of its divisors is an integer number (189280).

Almost surely, 2^8101980 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 8101980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13628160).

8101980 is an abundant number, since it is smaller than the sum of its proper divisors (19154340).

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

8101980 is a wasteful number, since it uses less digits than its factorization.

8101980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 8101980 is about 2846.3977234392. The cubic root of 8101980 is about 200.8462476080.

Adding to 8101980 its reverse (891018), we get a palindrome (8992998).

The spelling of 8101980 in words is "eight million, one hundred one thousand, nine hundred eighty".