12061779 has 4 divisors (see below), whose sum is σ = 16082376. Its totient is φ = 8041184.

The previous prime is 12061769. The next prime is 12061807. The reversal of 12061779 is 97716021.

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 12061779 - 2⁵ = 12061747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12061769) 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, 2010294 + ... + 2010299.

It is an arithmetic number, because the mean of its divisors is an integer number (4020594).

Almost surely, 2^12061779 is an apocalyptic number.

12061779 is a deficient number, since it is larger than the sum of its proper divisors (4020597).

12061779 is an equidigital number, since it uses as much as digits as its factorization.

12061779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020596.

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 12061779 is about 3473.0071983801. The cubic root of 12061779 is about 229.3350612156.

The spelling of 12061779 in words is "twelve million, sixty-one thousand, seven hundred seventy-nine".