13287823 has 2 divisors, whose sum is σ = 13287824. Its totient is φ = 13287822.

The previous prime is 13287811. The next prime is 13287853. The reversal of 13287823 is 32878231.

13287823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13287823 - 2⁹ = 13287311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13287853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6643911 + 6643912.

It is an arithmetic number, because the mean of its divisors is an integer number (6643912).

Almost surely, 2^13287823 is an apocalyptic number.

13287823 is a deficient number, since it is larger than the sum of its proper divisors (1).

13287823 is an equidigital number, since it uses as much as digits as its factorization.

13287823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 13287823 is about 3645.2466308880. The cubic root of 13287823 is about 236.8561204243.

The spelling of 13287823 in words is "thirteen million, two hundred eighty-seven thousand, eight hundred twenty-three".