12504817 has 12 divisors (see below), whose sum is σ = 13774044. Its totient is φ = 11344320.

The previous prime is 12504803. The next prime is 12504841. The reversal of 12504817 is 71840521.

It can be written as a sum of positive squares in 6 ways, for example, as 8667136 + 3837681 = 2944^2 + 1959^2 .

It is not a de Polignac number, because 12504817 - 2⁷ = 12504689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12504517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9703 + ... + 10915.

It is an arithmetic number, because the mean of its divisors is an integer number (1147837).

Almost surely, 2^12504817 is an apocalyptic number.

It is an amenable number.

12504817 is a deficient number, since it is larger than the sum of its proper divisors (1269227).

12504817 is a wasteful number, since it uses less digits than its factorization.

12504817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 12504817 is about 3536.2150669890. The cubic root of 12504817 is about 232.1092492300.

The spelling of 12504817 in words is "twelve million, five hundred four thousand, eight hundred seventeen".