12079861 has 4 divisors (see below), whose sum is σ = 12360832. Its totient is φ = 11798892.

The previous prime is 12079829. The next prime is 12079883. The reversal of 12079861 is 16897021.

It is a happy number.

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 12079861 - 2⁵ = 12079829 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 (12079261) 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, 140421 + ... + 140506.

It is an arithmetic number, because the mean of its divisors is an integer number (3090208).

Almost surely, 2^12079861 is an apocalyptic number.

It is an amenable number.

12079861 is a deficient number, since it is larger than the sum of its proper divisors (280971).

12079861 is an equidigital number, since it uses as much as digits as its factorization.

12079861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280970.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 12079861 is about 3475.6094429610. The cubic root of 12079861 is about 229.4496039130.

The spelling of 12079861 in words is "twelve million, seventy-nine thousand, eight hundred sixty-one".