12097779 has 16 divisors (see below), whose sum is σ = 16804512. Its totient is φ = 7734528.

The previous prime is 12097759. The next prime is 12097783. The reversal of 12097779 is 97779021.

It is not a de Polignac number, because 12097779 - 2⁷ = 12097651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12097779.

It is not an unprimeable number, because it can be changed into a prime (12097759) 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 15 ways as a sum of consecutive naturals, for example, 7357 + ... + 8849.

It is an arithmetic number, because the mean of its divisors is an integer number (1050282).

Almost surely, 2^12097779 is an apocalyptic number.

12097779 is a deficient number, since it is larger than the sum of its proper divisors (4706733).

12097779 is a wasteful number, since it uses less digits than its factorization.

12097779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 55566, while the sum is 42.

The square root of 12097779 is about 3478.1861652304. The cubic root of 12097779 is about 229.5629950337.

The spelling of 12097779 in words is "twelve million, ninety-seven thousand, seven hundred seventy-nine".