12506398 has 8 divisors (see below), whose sum is σ = 18778608. Its totient is φ = 6246864.

The previous prime is 12506393. The next prime is 12506399. The reversal of 12506398 is 89360521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12506393) 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, 111 + ... + 5002.

It is an arithmetic number, because the mean of its divisors is an integer number (2347326).

Almost surely, 2^12506398 is an apocalyptic number.

12506398 is a deficient number, since it is larger than the sum of its proper divisors (6272210).

12506398 is a wasteful number, since it uses less digits than its factorization.

12506398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6338.

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

The square root of 12506398 is about 3536.4386040196. The cubic root of 12506398 is about 232.1190307741.

The spelling of 12506398 in words is "twelve million, five hundred six thousand, three hundred ninety-eight".