11979529 has 4 divisors (see below), whose sum is σ = 12073984. Its totient is φ = 11885076.

The previous prime is 11979511. The next prime is 11979553. The reversal of 11979529 is 92597911.

11979529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11979529 - 2⁵ = 11979497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11979559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47037 + ... + 47290.

It is an arithmetic number, because the mean of its divisors is an integer number (3018496).

Almost surely, 2^11979529 is an apocalyptic number.

It is an amenable number.

11979529 is a deficient number, since it is larger than the sum of its proper divisors (94455).

11979529 is an equidigital number, since it uses as much as digits as its factorization.

11979529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94454.

The product of its digits is 51030, while the sum is 43.

The square root of 11979529 is about 3461.1456195890. The cubic root of 11979529 is about 228.8125886047.

The spelling of 11979529 in words is "eleven million, nine hundred seventy-nine thousand, five hundred twenty-nine".