13648929 has 16 divisors (see below), whose sum is σ = 20920320. Its totient is φ = 7753680.

The previous prime is 13648919. The next prime is 13648939. The reversal of 13648929 is 92984631.

It is an interprime number because it is at equal distance from previous prime (13648919) and next prime (13648939).

It is not a de Polignac number, because 13648929 - 2¹⁹ = 13124641 is a prime.

It is a super-3 number, since 3×13648929³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13648919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1944 + ... + 5574.

It is an arithmetic number, because the mean of its divisors is an integer number (1307520).

Almost surely, 2^13648929 is an apocalyptic number.

It is an amenable number.

13648929 is a deficient number, since it is larger than the sum of its proper divisors (7271391).

13648929 is a wasteful number, since it uses less digits than its factorization.

13648929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820.

The product of its digits is 93312, while the sum is 42.

The square root of 13648929 is about 3694.4456959062. The cubic root of 13648929 is about 238.9825503854.

The spelling of 13648929 in words is "thirteen million, six hundred forty-eight thousand, nine hundred twenty-nine".