12456716 has 24 divisors (see below), whose sum is σ = 23710176. Its totient is φ = 5702400.

The previous prime is 12456709. The next prime is 12456721. The reversal of 12456716 is 61765421.

12456716 = 39² + 40² + ... + 334².

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41 + ... + 4991.

It is an arithmetic number, because the mean of its divisors is an integer number (987924).

Almost surely, 2^12456716 is an apocalyptic number.

It is an amenable number.

12456716 is a deficient number, since it is larger than the sum of its proper divisors (11253460).

12456716 is a wasteful number, since it uses less digits than its factorization.

12456716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009 (or 5007 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 12456716 is about 3529.4073156835. The cubic root of 12456716 is about 231.8112565172.

The spelling of 12456716 in words is "twelve million, four hundred fifty-six thousand, seven hundred sixteen".