13748247 has 6 divisors (see below), whose sum is σ = 19858592. Its totient is φ = 9165492.

The previous prime is 13748237. The next prime is 13748249. The reversal of 13748247 is 74284731.

It is a happy number.

13748247 is a `hidden beast` number, since 137 + 482 + 47 = 666.

It is not a de Polignac number, because 13748247 - 2⁸ = 13747991 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 (13748249) 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 5 ways as a sum of consecutive naturals, for example, 763783 + ... + 763800.

Almost surely, 2^13748247 is an apocalyptic number.

13748247 is a deficient number, since it is larger than the sum of its proper divisors (6110345).

13748247 is a wasteful number, since it uses less digits than its factorization.

13748247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527589 (or 1527586 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 13748247 is about 3707.8628615417. The cubic root of 13748247 is about 239.5608113792.

It can be divided in two parts, 137 and 48247, that added together give a palindrome (48384).

The spelling of 13748247 in words is "thirteen million, seven hundred forty-eight thousand, two hundred forty-seven".