12613816 has 16 divisors (see below), whose sum is σ = 23976000. Its totient is φ = 6220224.

The previous prime is 12613721. The next prime is 12613823. The reversal of 12613816 is 61831621.

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, 10216 + ... + 11383.

It is an arithmetic number, because the mean of its divisors is an integer number (1498500).

Almost surely, 2^12613816 is an apocalyptic number.

It is an amenable number.

12613816 is a deficient number, since it is larger than the sum of its proper divisors (11362184).

12613816 is a wasteful number, since it uses less digits than its factorization.

12613816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21678 (or 21674 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 12613816 is about 3551.5934452017. The cubic root of 12613816 is about 232.7816973286.

The spelling of 12613816 in words is "twelve million, six hundred thirteen thousand, eight hundred sixteen".