13747643 has 12 divisors (see below), whose sum is σ = 17014608. Its totient is φ = 10876320.

The previous prime is 13747639. The next prime is 13747651. The reversal of 13747643 is 34674731.

It is not a de Polignac number, because 13747643 - 2² = 13747639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13747673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4628 + ... + 6993.

It is an arithmetic number, because the mean of its divisors is an integer number (1417884).

Almost surely, 2^13747643 is an apocalyptic number.

13747643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13747643 is a deficient number, since it is larger than the sum of its proper divisors (3266965).

13747643 is a wasteful number, since it uses less digits than its factorization.

13747643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11654 (or 11641 counting only the distinct ones).

The product of its digits is 42336, while the sum is 35.

The square root of 13747643 is about 3707.7814121116. The cubic root of 13747643 is about 239.5573031295.

The spelling of 13747643 in words is "thirteen million, seven hundred forty-seven thousand, six hundred forty-three".