12920716 has 6 divisors (see below), whose sum is σ = 22611260. Its totient is φ = 6460356.

The previous prime is 12920681. The next prime is 12920717. The reversal of 12920716 is 61702921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12920717) by changing a digit.

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 as a sum of consecutive naturals, namely, 1615086 + ... + 1615093.

Almost surely, 2^12920716 is an apocalyptic number.

It is an amenable number.

12920716 is a deficient number, since it is larger than the sum of its proper divisors (9690544).

12920716 is a wasteful number, since it uses less digits than its factorization.

12920716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230183 (or 3230181 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 12920716 is about 3594.5397480067. The cubic root of 12920716 is about 234.6544854573.

The spelling of 12920716 in words is "twelve million, nine hundred twenty thousand, seven hundred sixteen".