13929469 has 2 divisors, whose sum is σ = 13929470. Its totient is φ = 13929468.

The previous prime is 13929457. The next prime is 13929481. The reversal of 13929469 is 96492931.

It is a balanced prime because it is at equal distance from previous prime (13929457) and next prime (13929481).

It can be written as a sum of positive squares in only one way, i.e., 7868025 + 6061444 = 2805^2 + 2462^2 .

It is a cyclic number.

It is not a de Polignac number, because 13929469 - 2¹¹ = 13927421 is a prime.

It is a super-2 number, since 2×13929469² = 388060213243922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13929449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6964734 + 6964735.

It is an arithmetic number, because the mean of its divisors is an integer number (6964735).

Almost surely, 2^13929469 is an apocalyptic number.

It is an amenable number.

13929469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13929469 is an equidigital number, since it uses as much as digits as its factorization.

13929469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 43.

The square root of 13929469 is about 3732.2203847040. The cubic root of 13929469 is about 240.6088073435.

The spelling of 13929469 in words is "thirteen million, nine hundred twenty-nine thousand, four hundred sixty-nine".