13707647 has 4 divisors (see below), whose sum is σ = 13940040. Its totient is φ = 13475256.

The previous prime is 13707643. The next prime is 13707667. The reversal of 13707647 is 74670731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74670731 = 641 ⋅116491.

It is a cyclic number.

It is not a de Polignac number, because 13707647 - 2² = 13707643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13707643) 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, 116108 + ... + 116225.

It is an arithmetic number, because the mean of its divisors is an integer number (3485010).

Almost surely, 2^13707647 is an apocalyptic number.

13707647 is a deficient number, since it is larger than the sum of its proper divisors (232393).

13707647 is an equidigital number, since it uses as much as digits as its factorization.

13707647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232392.

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 13707647 is about 3702.3839617198. The cubic root of 13707647 is about 239.3247628898.

The spelling of 13707647 in words is "thirteen million, seven hundred seven thousand, six hundred forty-seven".