6631247 has 16 divisors (see below), whose sum is σ = 8098560. Its totient is φ = 5303232.

The previous prime is 6631237. The next prime is 6631271. The reversal of 6631247 is 7421366.

It is a cyclic number.

It is not a de Polignac number, because 6631247 - 2¹⁰ = 6630223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9368 + ... + 10050.

It is an arithmetic number, because the mean of its divisors is an integer number (506160).

Almost surely, 2^6631247 is an apocalyptic number.

6631247 is a deficient number, since it is larger than the sum of its proper divisors (1467313).

6631247 is a wasteful number, since it uses less digits than its factorization.

6631247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782.

The product of its digits is 6048, while the sum is 29.

The square root of 6631247 is about 2575.1207738667. The cubic root of 6631247 is about 187.8733019134.

It can be divided in two parts, 66 and 31247, that added together give a palindrome (31313).

The spelling of 6631247 in words is "six million, six hundred thirty-one thousand, two hundred forty-seven".