13630643 has 8 divisors (see below), whose sum is σ = 14716128. Its totient is φ = 12550464.

The previous prime is 13630637. The next prime is 13630649. The reversal of 13630643 is 34603631.

It is an interprime number because it is at equal distance from previous prime (13630637) and next prime (13630649).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13630643 - 2⁶ = 13630579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13630649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5255 + ... + 7407.

It is an arithmetic number, because the mean of its divisors is an integer number (1839516).

Almost surely, 2^13630643 is an apocalyptic number.

13630643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13630643 is a deficient number, since it is larger than the sum of its proper divisors (1085485).

13630643 is a wasteful number, since it uses less digits than its factorization.

13630643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 13630643 is about 3691.9700703012. The cubic root of 13630643 is about 238.8757779556.

The spelling of 13630643 in words is "thirteen million, six hundred thirty thousand, six hundred forty-three".