13748747 has 8 divisors (see below), whose sum is σ = 14003760. Its totient is φ = 13495680.

The previous prime is 13748743. The next prime is 13748759. The reversal of 13748747 is 74784731.

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 13748747 - 2² = 13748743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13748743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23879 + ... + 24447.

It is an arithmetic number, because the mean of its divisors is an integer number (1750470).

Almost surely, 2^13748747 is an apocalyptic number.

13748747 is a deficient number, since it is larger than the sum of its proper divisors (255013).

13748747 is an equidigital number, since it uses as much as digits as its factorization.

13748747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its digits is 131712, while the sum is 41.

The square root of 13748747 is about 3707.9302852130. The cubic root of 13748747 is about 239.5637154817.

It can be divided in two parts, 137 and 48747, that added together give a palindrome (48884).

The spelling of 13748747 in words is "thirteen million, seven hundred forty-eight thousand, seven hundred forty-seven".