11872779 has 8 divisors (see below), whose sum is σ = 15859200. Its totient is φ = 7900776.

The previous prime is 11872771. The next prime is 11872787. The reversal of 11872779 is 97727811.

It is an interprime number because it is at equal distance from previous prime (11872771) and next prime (11872787).

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

It is not a de Polignac number, because 11872779 - 2³ = 11872771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11872779.

It is not an unprimeable number, because it can be changed into a prime (11872771) 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, 1507 + ... + 5100.

It is an arithmetic number, because the mean of its divisors is an integer number (1982400).

Almost surely, 2^11872779 is an apocalyptic number.

11872779 is a deficient number, since it is larger than the sum of its proper divisors (3986421).

11872779 is an equidigital number, since it uses as much as digits as its factorization.

11872779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7209.

The product of its digits is 49392, while the sum is 42.

The square root of 11872779 is about 3445.6899164028. The cubic root of 11872779 is about 228.1309074344.

The spelling of 11872779 in words is "eleven million, eight hundred seventy-two thousand, seven hundred seventy-nine".