12257684 has 6 divisors (see below), whose sum is σ = 21450954. Its totient is φ = 6128840.

The previous prime is 12257677. The next prime is 12257711. The reversal of 12257684 is 48675221.

It can be written as a sum of positive squares in only one way, i.e., 11710084 + 547600 = 3422^2 + 740^2 .

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, 1532207 + ... + 1532214.

It is an arithmetic number, because the mean of its divisors is an integer number (3575159).

Almost surely, 2^12257684 is an apocalyptic number.

It is an amenable number.

12257684 is a deficient number, since it is larger than the sum of its proper divisors (9193270).

12257684 is a wasteful number, since it uses less digits than its factorization.

12257684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064425 (or 3064423 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 12257684 is about 3501.0975422002. The cubic root of 12257684 is about 230.5700039740.

The spelling of 12257684 in words is "twelve million, two hundred fifty-seven thousand, six hundred eighty-four".