13996669 has 2 divisors, whose sum is σ = 13996670. Its totient is φ = 13996668.

The previous prime is 13996651. The next prime is 13996687. The reversal of 13996669 is 96669931.

13996669 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (13996651) and next prime (13996687).

It can be written as a sum of positive squares in only one way, i.e., 13972644 + 24025 = 3738^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 13996669 - 2¹³ = 13988477 is a prime.

It is a super-2 number, since 2×13996669² = 391813486191122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13996639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6998334 + 6998335.

It is an arithmetic number, because the mean of its divisors is an integer number (6998335).

Almost surely, 2^13996669 is an apocalyptic number.

It is an amenable number.

13996669 is a deficient number, since it is larger than the sum of its proper divisors (1).

13996669 is an equidigital number, since it uses as much as digits as its factorization.

13996669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 472392, while the sum is 49.

The square root of 13996669 is about 3741.2122366955. The cubic root of 13996669 is about 240.9951101778.

The spelling of 13996669 in words is "thirteen million, nine hundred ninety-six thousand, six hundred sixty-nine".