12720567 has 8 divisors (see below), whose sum is σ = 17021824. Its totient is φ = 8449848.

The previous prime is 12720559. The next prime is 12720569. The reversal of 12720567 is 76502721.

12720567 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12720567 - 2³ = 12720559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12720569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6643 + ... + 8340.

It is an arithmetic number, because the mean of its divisors is an integer number (2127728).

Almost surely, 2^12720567 is an apocalyptic number.

12720567 is a deficient number, since it is larger than the sum of its proper divisors (4301257).

12720567 is a wasteful number, since it uses less digits than its factorization.

12720567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15269.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 12720567 is about 3566.5903885924. The cubic root of 12720567 is about 233.4365323548.

The spelling of 12720567 in words is "twelve million, seven hundred twenty thousand, five hundred sixty-seven".