8011965 has 32 divisors (see below), whose sum is σ = 13942656. Its totient is φ = 3905280.

The previous prime is 8011961. The next prime is 8011967. The reversal of 8011965 is 5691108.

It is a happy number.

8011965 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8011965 - 2² = 8011961 is a prime.

It is a super-2 number, since 2×8011965² = 128383166322450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8011961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35182 + ... + 35408.

It is an arithmetic number, because the mean of its divisors is an integer number (435708).

Almost surely, 2^8011965 is an apocalyptic number.

It is an amenable number.

8011965 is a deficient number, since it is larger than the sum of its proper divisors (5930691).

8011965 is a wasteful number, since it uses less digits than its factorization.

8011965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 8011965 is about 2830.5414676348. The cubic root of 8011965 is about 200.0996586658.

The spelling of 8011965 in words is "eight million, eleven thousand, nine hundred sixty-five".