6631743 has 4 divisors (see below), whose sum is σ = 8842328. Its totient is φ = 4421160.

The previous prime is 6631739. The next prime is 6631763. The reversal of 6631743 is 3471366.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6631743 - 2² = 6631739 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6631743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105288 + ... + 1105293.

It is an arithmetic number, because the mean of its divisors is an integer number (2210582).

Almost surely, 2^6631743 is an apocalyptic number.

6631743 is a deficient number, since it is larger than the sum of its proper divisors (2210585).

6631743 is a wasteful number, since it uses less digits than its factorization.

6631743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210584.

The product of its digits is 9072, while the sum is 30.

The square root of 6631743 is about 2575.2170782286. The cubic root of 6631743 is about 187.8779859411.

The spelling of 6631743 in words is "six million, six hundred thirty-one thousand, seven hundred forty-three".