12004657 has 16 divisors (see below), whose sum is σ = 14464000. Its totient is φ = 9948960.

The previous prime is 12004633. The next prime is 12004661. The reversal of 12004657 is 75640021.

It is not a de Polignac number, because 12004657 - 2⁷ = 12004529 is a prime.

It is a super-2 number, since 2×12004657² = 288223579375298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12004607) 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, 10069 + ... + 11197.

It is an arithmetic number, because the mean of its divisors is an integer number (904000).

Almost surely, 2^12004657 is an apocalyptic number.

It is an amenable number.

12004657 is a deficient number, since it is larger than the sum of its proper divisors (2459343).

12004657 is an equidigital number, since it uses as much as digits as its factorization.

12004657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 12004657 is about 3464.7737299858. The cubic root of 12004657 is about 228.9724609816.

Adding to 12004657 its reverse (75640021), we get a palindrome (87644678).

The spelling of 12004657 in words is "twelve million, four thousand, six hundred fifty-seven".