13705072 has 10 divisors (see below), whose sum is σ = 26553608. Its totient is φ = 6852528.

The previous prime is 13705067. The next prime is 13705073. The reversal of 13705072 is 27050731.

13705072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13705073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428268 + ... + 428299.

Almost surely, 2^13705072 is an apocalyptic number.

It is an amenable number.

13705072 is a deficient number, since it is larger than the sum of its proper divisors (12848536).

13705072 is an equidigital number, since it uses as much as digits as its factorization.

13705072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856575 (or 856569 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 13705072 is about 3702.0361964735. The cubic root of 13705072 is about 239.3097761247.

It can be divided in two parts, 1 and 3705072, that added together give a palindrome (3705073).

The spelling of 13705072 in words is "thirteen million, seven hundred five thousand, seventy-two".