13730947 has 4 divisors (see below), whose sum is σ = 13754176. Its totient is φ = 13707720.

The previous prime is 13730929. The next prime is 13730971. The reversal of 13730947 is 74903731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13730947 - 2⁷ = 13730819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13730987) 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, 10704 + ... + 11917.

It is an arithmetic number, because the mean of its divisors is an integer number (3438544).

Almost surely, 2^13730947 is an apocalyptic number.

13730947 is a deficient number, since it is larger than the sum of its proper divisors (23229).

13730947 is an equidigital number, since it uses as much as digits as its factorization.

13730947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23228.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 13730947 is about 3705.5292469498. The cubic root of 13730947 is about 239.4602860392.

The spelling of 13730947 in words is "thirteen million, seven hundred thirty thousand, nine hundred forty-seven".