12009777 has 16 divisors (see below), whose sum is σ = 17320128. Its totient is φ = 7358400.

The previous prime is 12009773. The next prime is 12009779. The reversal of 12009777 is 77790021.

It is not a de Polignac number, because 12009777 - 2² = 12009773 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12009773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10902 + ... + 11952.

It is an arithmetic number, because the mean of its divisors is an integer number (1082508).

Almost surely, 2^12009777 is an apocalyptic number.

It is an amenable number.

12009777 is a deficient number, since it is larger than the sum of its proper divisors (5310351).

12009777 is a wasteful number, since it uses less digits than its factorization.

12009777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360.

The product of its (nonzero) digits is 6174, while the sum is 33.

The square root of 12009777 is about 3465.5125162088. The cubic root of 12009777 is about 229.0050086940.

Adding to 12009777 its reverse (77790021), we get a palindrome (89799798).

The spelling of 12009777 in words is "twelve million, nine thousand, seven hundred seventy-seven".