8011389 has 4 divisors (see below), whose sum is σ = 10681856. Its totient is φ = 5340924.

The previous prime is 8011387. The next prime is 8011397. The reversal of 8011389 is 9831108.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8011389 - 2¹ = 8011387 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8011387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335229 + ... + 1335234.

It is an arithmetic number, because the mean of its divisors is an integer number (2670464).

Almost surely, 2^8011389 is an apocalyptic number.

It is an amenable number.

8011389 is a deficient number, since it is larger than the sum of its proper divisors (2670467).

8011389 is a wasteful number, since it uses less digits than its factorization.

8011389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670466.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 8011389 is about 2830.4397184890. The cubic root of 8011389 is about 200.0948633310.

The spelling of 8011389 in words is "eight million, eleven thousand, three hundred eighty-nine".