12680407 has 4 divisors (see below), whose sum is σ = 12777336. Its totient is φ = 12583480.

The previous prime is 12680401. The next prime is 12680411. The reversal of 12680407 is 70408621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70408621 = 4229 ⋅16649.

It is a cyclic number.

It is not a de Polignac number, because 12680407 - 2¹⁹ = 12156119 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 (12680401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48268 + ... + 48529.

It is an arithmetic number, because the mean of its divisors is an integer number (3194334).

Almost surely, 2^12680407 is an apocalyptic number.

12680407 is a deficient number, since it is larger than the sum of its proper divisors (96929).

12680407 is an equidigital number, since it uses as much as digits as its factorization.

12680407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96928.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 12680407 is about 3560.9559109879. The cubic root of 12680407 is about 233.1906131754.

The spelling of 12680407 in words is "twelve million, six hundred eighty thousand, four hundred seven".