12321776 has 10 divisors (see below), whose sum is σ = 23873472. Its totient is φ = 6160880.

The previous prime is 12321763. The next prime is 12321797. The reversal of 12321776 is 67712321.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 385040 + ... + 385071.

Almost surely, 2^12321776 is an apocalyptic number.

12321776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12321776 is a deficient number, since it is larger than the sum of its proper divisors (11551696).

12321776 is an equidigital number, since it uses as much as digits as its factorization.

12321776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770119 (or 770113 counting only the distinct ones).

The product of its digits is 3528, while the sum is 29.

The square root of 12321776 is about 3510.2387383197. The cubic root of 12321776 is about 230.9711676064.

The spelling of 12321776 in words is "twelve million, three hundred twenty-one thousand, seven hundred seventy-six".