12508693 has 4 divisors (see below), whose sum is σ = 12517900. Its totient is φ = 12499488.

The previous prime is 12508687. The next prime is 12508697. The reversal of 12508693 is 39680521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7387524 + 5121169 = 2718^2 + 2263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12508693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12508697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2118 + ... + 5431.

It is an arithmetic number, because the mean of its divisors is an integer number (3129475).

Almost surely, 2^12508693 is an apocalyptic number.

It is an amenable number.

12508693 is a deficient number, since it is larger than the sum of its proper divisors (9207).

12508693 is an equidigital number, since it uses as much as digits as its factorization.

12508693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9206.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 12508693 is about 3536.7630681175. The cubic root of 12508693 is about 232.1332283231.

The spelling of 12508693 in words is "twelve million, five hundred eight thousand, six hundred ninety-three".