13729807 has 24 divisors (see below), whose sum is σ = 17572128. Its totient is φ = 10445760.

The previous prime is 13729801. The next prime is 13729811. The reversal of 13729807 is 70892731.

It is not a de Polignac number, because 13729807 - 2²³ = 5341199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13729801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87373 + ... + 87529.

It is an arithmetic number, because the mean of its divisors is an integer number (732172).

Almost surely, 2^13729807 is an apocalyptic number.

13729807 is a deficient number, since it is larger than the sum of its proper divisors (3842321).

13729807 is a wasteful number, since it uses less digits than its factorization.

13729807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 13729807 is about 3705.3754195763. The cubic root of 13729807 is about 239.4536588614.

The spelling of 13729807 in words is "thirteen million, seven hundred twenty-nine thousand, eight hundred seven".