13447069 has 2 divisors, whose sum is σ = 13447070. Its totient is φ = 13447068.

The previous prime is 13447067. The next prime is 13447073. The reversal of 13447069 is 96074431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7868025 + 5579044 = 2805^2 + 2362^2 .

It is a cyclic number.

It is not a de Polignac number, because 13447069 - 2¹ = 13447067 is a prime.

It is a super-2 number, since 2×13447069² = 361647329381522, which contains 22 as substring.

Together with 13447067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13447067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6723534 + 6723535.

It is an arithmetic number, because the mean of its divisors is an integer number (6723535).

Almost surely, 2^13447069 is an apocalyptic number.

It is an amenable number.

13447069 is a deficient number, since it is larger than the sum of its proper divisors (1).

13447069 is an equidigital number, since it uses as much as digits as its factorization.

13447069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 13447069 is about 3667.0245431412. The cubic root of 13447069 is about 237.7985549159.

The spelling of 13447069 in words is "thirteen million, four hundred forty-seven thousand, sixty-nine".