13420469 has 2 divisors, whose sum is σ = 13420470. Its totient is φ = 13420468.

The previous prime is 13420453. The next prime is 13420481. The reversal of 13420469 is 96402431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13322500 + 97969 = 3650^2 + 313^2 .

It is a cyclic number.

It is not a de Polignac number, because 13420469 - 2⁴ = 13420453 is a prime.

It is a super-2 number, since 2×13420469² = 360217976359922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13420499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710234 + 6710235.

It is an arithmetic number, because the mean of its divisors is an integer number (6710235).

Almost surely, 2^13420469 is an apocalyptic number.

It is an amenable number.

13420469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13420469 is an equidigital number, since it uses as much as digits as its factorization.

13420469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 13420469 is about 3663.3958290089. The cubic root of 13420469 is about 237.6416528928.

The spelling of 13420469 in words is "thirteen million, four hundred twenty thousand, four hundred sixty-nine".