13730706 has 48 divisors (see below), whose sum is σ = 33516288. Its totient is φ = 4024800.

The previous prime is 13730699. The next prime is 13730719. The reversal of 13730706 is 60703731.

It is a self number, because there is not a number n which added to its sum of digits gives 13730706.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5020 + ... + 7256.

It is an arithmetic number, because the mean of its divisors is an integer number (698256).

Almost surely, 2^13730706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13730706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16758144).

13730706 is an abundant number, since it is smaller than the sum of its proper divisors (19785582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13730706 is a wasteful number, since it uses less digits than its factorization.

13730706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287 (or 2284 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 13730706 is about 3705.4967278356. The cubic root of 13730706 is about 239.4588850612.

The spelling of 13730706 in words is "thirteen million, seven hundred thirty thousand, seven hundred six".