8011980 has 96 divisors (see below), whose sum is σ = 25663680. Its totient is φ = 2073600.

The previous prime is 8011979. The next prime is 8011999. The reversal of 8011980 is 891108.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19780 + ... + 20180.

It is an arithmetic number, because the mean of its divisors is an integer number (267330).

Almost surely, 2^8011980 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 8011980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12831840).

8011980 is an abundant number, since it is smaller than the sum of its proper divisors (17651700).

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

8011980 is a wasteful number, since it uses less digits than its factorization.

8011980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 448 counting only the distinct ones).

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

The square root of 8011980 is about 2830.5441173032. The cubic root of 8011980 is about 200.0997835413.

The spelling of 8011980 in words is "eight million, eleven thousand, nine hundred eighty".