11568491 has 8 divisors (see below), whose sum is σ = 12648000. Its totient is φ = 10493640.

The previous prime is 11568481. The next prime is 11568493. The reversal of 11568491 is 19486511.

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

It is a cyclic number.

It is not a de Polignac number, because 11568491 - 2¹⁰ = 11567467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11568493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5960 + ... + 7658.

It is an arithmetic number, because the mean of its divisors is an integer number (1581000).

Almost surely, 2^11568491 is an apocalyptic number.

11568491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11568491 is a deficient number, since it is larger than the sum of its proper divisors (1079509).

11568491 is a wasteful number, since it uses less digits than its factorization.

11568491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329.

The product of its digits is 8640, while the sum is 35.

The square root of 11568491 is about 3401.2484472617. The cubic root of 11568491 is about 226.1650906926.

The spelling of 11568491 in words is "eleven million, five hundred sixty-eight thousand, four hundred ninety-one".