13969629 has 12 divisors (see below), whose sum is σ = 20217756. Its totient is φ = 9294912.

The previous prime is 13969621. The next prime is 13969667. The reversal of 13969629 is 92696931.

It is a happy number.

13969629 is a `hidden beast` number, since 13 + 9 + 6 + 9 + 629 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4347225 + 9622404 = 2085^2 + 3102^2 .

It is not a de Polignac number, because 13969629 - 2³ = 13969621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13969621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4689 + ... + 7065.

It is an arithmetic number, because the mean of its divisors is an integer number (1684813).

Almost surely, 2^13969629 is an apocalyptic number.

It is an amenable number.

13969629 is a deficient number, since it is larger than the sum of its proper divisors (6248127).

13969629 is a wasteful number, since it uses less digits than its factorization.

13969629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036 (or 3033 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 13969629 is about 3737.5966877126. The cubic root of 13969629 is about 240.8398182609.

It can be divided in two parts, 1396 and 9629, that added together give a square (11025 = 105²).

The spelling of 13969629 in words is "thirteen million, nine hundred sixty-nine thousand, six hundred twenty-nine".