8011491 has 8 divisors (see below), whose sum is σ = 10746624. Its totient is φ = 5308680.

The previous prime is 8011481. The next prime is 8011517. The reversal of 8011491 is 1941108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8011491 - 2⁷ = 8011363 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8011481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7495 + ... + 8496.

It is an arithmetic number, because the mean of its divisors is an integer number (1343328).

Almost surely, 2^8011491 is an apocalyptic number.

8011491 is a deficient number, since it is larger than the sum of its proper divisors (2735133).

8011491 is a wasteful number, since it uses less digits than its factorization.

8011491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16161.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 8011491 is about 2830.4577368334. The cubic root of 8011491 is about 200.0957125216.

Adding to 8011491 its reverse (1941108), we get a palindrome (9952599).

The spelling of 8011491 in words is "eight million, eleven thousand, four hundred ninety-one".