6631479 has 24 divisors (see below), whose sum is σ = 10277280. Its totient is φ = 4105728.

The previous prime is 6631477. The next prime is 6631483. The reversal of 6631479 is 9741366.

It is not a de Polignac number, because 6631479 - 2¹ = 6631477 is a prime.

6631479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631477) 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 23 ways as a sum of consecutive naturals, for example, 13374 + ... + 13860.

It is an arithmetic number, because the mean of its divisors is an integer number (428220).

Almost surely, 2^6631479 is an apocalyptic number.

6631479 is a deficient number, since it is larger than the sum of its proper divisors (3645801).

6631479 is a wasteful number, since it uses less digits than its factorization.

6631479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 596 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 6631479 is about 2575.1658199036. The cubic root of 6631479 is about 187.8754928586.

The spelling of 6631479 in words is "six million, six hundred thirty-one thousand, four hundred seventy-nine".