13722469 has 2 divisors, whose sum is σ = 13722470. Its totient is φ = 13722468.

The previous prime is 13722431. The next prime is 13722479. The reversal of 13722469 is 96422731.

13722469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7219969 + 6502500 = 2687^2 + 2550^2 .

It is a cyclic number.

It is not a de Polignac number, because 13722469 - 2⁷ = 13722341 is a prime.

It is a super-2 number, since 2×13722469² = 376612310911922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13722409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6861234 + 6861235.

It is an arithmetic number, because the mean of its divisors is an integer number (6861235).

Almost surely, 2^13722469 is an apocalyptic number.

It is an amenable number.

13722469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13722469 is an equidigital number, since it uses as much as digits as its factorization.

13722469 is an evil number, because the sum of its binary digits is even.

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

The square root of 13722469 is about 3704.3851041705. The cubic root of 13722469 is about 239.4109919816.

The spelling of 13722469 in words is "thirteen million, seven hundred twenty-two thousand, four hundred sixty-nine".