13206823 has 6 divisors (see below), whose sum is σ = 15363096. Its totient is φ = 11320092.

The previous prime is 13206821. The next prime is 13206847. The reversal of 13206823 is 32860231.

It is not a de Polignac number, because 13206823 - 2¹ = 13206821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13206821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134715 + ... + 134812.

It is an arithmetic number, because the mean of its divisors is an integer number (2560516).

Almost surely, 2^13206823 is an apocalyptic number.

13206823 is a deficient number, since it is larger than the sum of its proper divisors (2156273).

13206823 is an equidigital number, since it uses as much as digits as its factorization.

13206823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269541 (or 269534 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 13206823 is about 3634.1192880807. The cubic root of 13206823 is about 236.3738628039.

The spelling of 13206823 in words is "thirteen million, two hundred six thousand, eight hundred twenty-three".