11879547 has 4 divisors (see below), whose sum is σ = 15839400. Its totient is φ = 7919696.

The previous prime is 11879537. The next prime is 11879561. The reversal of 11879547 is 74597811.

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

It is a cyclic number.

It is not a de Polignac number, because 11879547 - 2⁸ = 11879291 is a prime.

It is a super-2 number, since 2×11879547² = 282247273850418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11879499 and 11879508.

It is not an unprimeable number, because it can be changed into a prime (11879537) 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, 1979922 + ... + 1979927.

It is an arithmetic number, because the mean of its divisors is an integer number (3959850).

Almost surely, 2^11879547 is an apocalyptic number.

11879547 is a deficient number, since it is larger than the sum of its proper divisors (3959853).

11879547 is an equidigital number, since it uses as much as digits as its factorization.

11879547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959852.

The product of its digits is 70560, while the sum is 42.

The square root of 11879547 is about 3446.6718729812. The cubic root of 11879547 is about 228.1742473774.

The spelling of 11879547 in words is "eleven million, eight hundred seventy-nine thousand, five hundred forty-seven".