11851879 has 4 divisors (see below), whose sum is σ = 12763576. Its totient is φ = 10940184.

The previous prime is 11851867. The next prime is 11851891. The reversal of 11851879 is 97815811.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11851867) and next prime (11851891).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11851879 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 (11851859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455829 + ... + 455854.

It is an arithmetic number, because the mean of its divisors is an integer number (3190894).

Almost surely, 2^11851879 is an apocalyptic number.

11851879 is a deficient number, since it is larger than the sum of its proper divisors (911697).

11851879 is an equidigital number, since it uses as much as digits as its factorization.

11851879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911696.

The product of its digits is 20160, while the sum is 40.

The square root of 11851879 is about 3442.6558062054. The cubic root of 11851879 is about 227.9969669751.

The spelling of 11851879 in words is "eleven million, eight hundred fifty-one thousand, eight hundred seventy-nine".