13490647 has 4 divisors (see below), whose sum is σ = 13513696. Its totient is φ = 13467600.

The previous prime is 13490641. The next prime is 13490657. The reversal of 13490647 is 74609431.

It is a happy number.

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 13490647 - 2¹⁵ = 13457879 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 (13490641) 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, 10623 + ... + 11824.

It is an arithmetic number, because the mean of its divisors is an integer number (3378424).

Almost surely, 2^13490647 is an apocalyptic number.

13490647 is a deficient number, since it is larger than the sum of its proper divisors (23049).

13490647 is an equidigital number, since it uses as much as digits as its factorization.

13490647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23048.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 13490647 is about 3672.9616115609. The cubic root of 13490647 is about 238.0551563430.

The spelling of 13490647 in words is "thirteen million, four hundred ninety thousand, six hundred forty-seven".