12616398 has 40 divisors (see below), whose sum is σ = 28888992. Its totient is φ = 4113504.

The previous prime is 12616339. The next prime is 12616427. The reversal of 12616398 is 89361621.

12616398 is a `hidden beast` number, since 1 + 2 + 616 + 39 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6786 + ... + 8442.

Almost surely, 2^12616398 is an apocalyptic number.

12616398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12616398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14444496).

12616398 is an abundant number, since it is smaller than the sum of its proper divisors (16272594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12616398 is a wasteful number, since it uses less digits than its factorization.

12616398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 1709 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12616398 is about 3551.9569254145. The cubic root of 12616398 is about 232.7975794200.

The spelling of 12616398 in words is "twelve million, six hundred sixteen thousand, three hundred ninety-eight".