12738567 has 8 divisors (see below), whose sum is σ = 17028720. Its totient is φ = 8470400.

The previous prime is 12738563. The next prime is 12738581. The reversal of 12738567 is 76583721.

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

It is a cyclic number.

It is not a de Polignac number, because 12738567 - 2² = 12738563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12738563) 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, 4092 + ... + 6497.

It is an arithmetic number, because the mean of its divisors is an integer number (2128590).

Almost surely, 2^12738567 is an apocalyptic number.

12738567 is a deficient number, since it is larger than the sum of its proper divisors (4290153).

12738567 is a wasteful number, since it uses less digits than its factorization.

12738567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10993.

The product of its digits is 70560, while the sum is 39.

The square root of 12738567 is about 3569.1129149972. The cubic root of 12738567 is about 233.5465871246.

The spelling of 12738567 in words is "twelve million, seven hundred thirty-eight thousand, five hundred sixty-seven".