13485729 has 8 divisors (see below), whose sum is σ = 18035680. Its totient is φ = 8963136.

The previous prime is 13485721. The next prime is 13485737. The reversal of 13485729 is 92758431.

13485729 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13485721) and next prime (13485737).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13485729 - 2³ = 13485721 is a prime.

It is a super-2 number, since 2×13485729² = 363729773322882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13485721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5659 + ... + 7680.

It is an arithmetic number, because the mean of its divisors is an integer number (2254460).

Almost surely, 2^13485729 is an apocalyptic number.

It is an amenable number.

13485729 is a deficient number, since it is larger than the sum of its proper divisors (4549951).

13485729 is a wasteful number, since it uses less digits than its factorization.

13485729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13679.

The product of its digits is 60480, while the sum is 39.

The square root of 13485729 is about 3672.2920635483. The cubic root of 13485729 is about 238.0262252484.

The spelling of 13485729 in words is "thirteen million, four hundred eighty-five thousand, seven hundred twenty-nine".