12516398 has 8 divisors (see below), whose sum is σ = 19232640. Its totient is φ = 6105520.

The previous prime is 12516389. The next prime is 12516401. The reversal of 12516398 is 89361521.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76238 + ... + 76401.

It is an arithmetic number, because the mean of its divisors is an integer number (2404080).

Almost surely, 2^12516398 is an apocalyptic number.

12516398 is a deficient number, since it is larger than the sum of its proper divisors (6716242).

12516398 is a wasteful number, since it uses less digits than its factorization.

12516398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152682.

The product of its digits is 12960, while the sum is 35.

The square root of 12516398 is about 3537.8521732825. The cubic root of 12516398 is about 232.1808810344.

The spelling of 12516398 in words is "twelve million, five hundred sixteen thousand, three hundred ninety-eight".