13469969 has 2 divisors, whose sum is σ = 13469970. Its totient is φ = 13469968.

The previous prime is 13469923. The next prime is 13469971. The reversal of 13469969 is 96996431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7219969 + 6250000 = 2687^2 + 2500^2 .

It is a cyclic number.

It is not a de Polignac number, because 13469969 - 2²⁰ = 12421393 is a prime.

It is a super-2 number, since 2×13469969² = 362880129721922, which contains 22 as substring.

Together with 13469971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13469999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6734984 + 6734985.

It is an arithmetic number, because the mean of its divisors is an integer number (6734985).

Almost surely, 2^13469969 is an apocalyptic number.

It is an amenable number.

13469969 is a deficient number, since it is larger than the sum of its proper divisors (1).

13469969 is an equidigital number, since it uses as much as digits as its factorization.

13469969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 47.

The square root of 13469969 is about 3670.1456374373. The cubic root of 13469969 is about 237.9334665609.

The spelling of 13469969 in words is "thirteen million, four hundred sixty-nine thousand, nine hundred sixty-nine".