13623667 has 2 divisors, whose sum is σ = 13623668. Its totient is φ = 13623666.

The previous prime is 13623661. The next prime is 13623697. The reversal of 13623667 is 76632631.

It is a weak prime.

It is an emirp because it is prime and its reverse (76632631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13623667 is a prime.

It is not a weakly prime, because it can be changed into another prime (13623661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6811833 + 6811834.

It is an arithmetic number, because the mean of its divisors is an integer number (6811834).

Almost surely, 2^13623667 is an apocalyptic number.

13623667 is a deficient number, since it is larger than the sum of its proper divisors (1).

13623667 is an equidigital number, since it uses as much as digits as its factorization.

13623667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 13623667 is about 3691.0251963377. The cubic root of 13623667 is about 238.8350197466.

The spelling of 13623667 in words is "thirteen million, six hundred twenty-three thousand, six hundred sixty-seven".