8011620 has 72 divisors (see below), whose sum is σ = 24845184. Its totient is φ = 2088768.

The previous prime is 8011589. The next prime is 8011621. The reversal of 8011620 is 261108.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 8011593 and 8011602.

It is not an unprimeable number, because it can be changed into a prime (8011621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7987 + ... + 8933.

It is an arithmetic number, because the mean of its divisors is an integer number (345072).

Almost surely, 2^8011620 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 8011620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12422592).

8011620 is an abundant number, since it is smaller than the sum of its proper divisors (16833564).

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

8011620 is a wasteful number, since it uses less digits than its factorization.

8011620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 8011620 is about 2830.4805245753. The cubic root of 8011620 is about 200.0967864877.

Adding to 8011620 its reverse (261108), we get a palindrome (8272728).

The spelling of 8011620 in words is "eight million, eleven thousand, six hundred twenty".