13470729 has 4 divisors (see below), whose sum is σ = 17960976. Its totient is φ = 8980484.

The previous prime is 13470727. The next prime is 13470731. The reversal of 13470729 is 92707431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (13470727) and next prime (13470731).

It is a cyclic number.

It is not a de Polignac number, because 13470729 - 2¹ = 13470727 is a prime.

It is a super-3 number, since 3×13470729³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13470729.

It is not an unprimeable number, because it can be changed into a prime (13470727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2245119 + ... + 2245124.

It is an arithmetic number, because the mean of its divisors is an integer number (4490244).

Almost surely, 2^13470729 is an apocalyptic number.

It is an amenable number.

13470729 is a deficient number, since it is larger than the sum of its proper divisors (4490247).

13470729 is an equidigital number, since it uses as much as digits as its factorization.

13470729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490246.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 13470729 is about 3670.2491741025. The cubic root of 13470729 is about 237.9379413555.

The spelling of 13470729 in words is "thirteen million, four hundred seventy thousand, seven hundred twenty-nine".