13206929 has 2 divisors, whose sum is σ = 13206930. Its totient is φ = 13206928.

The previous prime is 13206917. The next prime is 13206931. The reversal of 13206929 is 92960231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9443329 + 3763600 = 3073^2 + 1940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13206929 is a prime.

It is a super-2 number, since 2×13206929² = 348845947222082, which contains 22 as substring.

Together with 13206931, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13206895 and 13206904.

It is not a weakly prime, because it can be changed into another prime (13206959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6603464 + 6603465.

It is an arithmetic number, because the mean of its divisors is an integer number (6603465).

Almost surely, 2^13206929 is an apocalyptic number.

It is an amenable number.

13206929 is a deficient number, since it is larger than the sum of its proper divisors (1).

13206929 is an equidigital number, since it uses as much as digits as its factorization.

13206929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 13206929 is about 3634.1338720526. The cubic root of 13206929 is about 236.3744951933.

The spelling of 13206929 in words is "thirteen million, two hundred six thousand, nine hundred twenty-nine".