11365861 has 8 divisors (see below), whose sum is σ = 12356064. Its totient is φ = 10392240.

The previous prime is 11365859. The next prime is 11365867. The reversal of 11365861 is 16856311.

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 11365861 - 2¹ = 11365859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11365867) 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, 2695 + ... + 5476.

It is an arithmetic number, because the mean of its divisors is an integer number (1544508).

Almost surely, 2^11365861 is an apocalyptic number.

It is an amenable number.

11365861 is a deficient number, since it is larger than the sum of its proper divisors (990203).

11365861 is a wasteful number, since it uses less digits than its factorization.

11365861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8291.

The product of its digits is 4320, while the sum is 31.

The square root of 11365861 is about 3371.3292630652. The cubic root of 11365861 is about 224.8368265487.

The spelling of 11365861 in words is "eleven million, three hundred sixty-five thousand, eight hundred sixty-one".