13566607 has 2 divisors, whose sum is σ = 13566608. Its totient is φ = 13566606.

The previous prime is 13566593. The next prime is 13566617. The reversal of 13566607 is 70666531.

It is a happy number.

13566607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13566607 - 2⁷ = 13566479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13566617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6783303 + 6783304.

It is an arithmetic number, because the mean of its divisors is an integer number (6783304).

Almost surely, 2^13566607 is an apocalyptic number.

13566607 is a deficient number, since it is larger than the sum of its proper divisors (1).

13566607 is an equidigital number, since it uses as much as digits as its factorization.

13566607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 13566607 is about 3683.2875261103. The cubic root of 13566607 is about 238.5011156035.

The spelling of 13566607 in words is "thirteen million, five hundred sixty-six thousand, six hundred seven".