12508917 has 8 divisors (see below), whose sum is σ = 16708800. Its totient is φ = 8324160.

The previous prime is 12508907. The next prime is 12508919. The reversal of 12508917 is 71980521.

12508917 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12508917 - 2⁷ = 12508789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12508919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684 + ... + 5277.

It is an arithmetic number, because the mean of its divisors is an integer number (2088600).

Almost surely, 2^12508917 is an apocalyptic number.

It is an amenable number.

12508917 is a deficient number, since it is larger than the sum of its proper divisors (4199883).

12508917 is an equidigital number, since it uses as much as digits as its factorization.

12508917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7563.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 12508917 is about 3536.7947353501. The cubic root of 12508917 is about 232.1346139603.

The spelling of 12508917 in words is "twelve million, five hundred eight thousand, nine hundred seventeen".