6531479 has 2 divisors, whose sum is σ = 6531480. Its totient is φ = 6531478.

The previous prime is 6531463. The next prime is 6531487. The reversal of 6531479 is 9741356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6531479 - 2⁴ = 6531463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6531419) 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 as a sum of consecutive naturals, namely, 3265739 + 3265740.

It is an arithmetic number, because the mean of its divisors is an integer number (3265740).

Almost surely, 2^6531479 is an apocalyptic number.

6531479 is a deficient number, since it is larger than the sum of its proper divisors (1).

6531479 is an equidigital number, since it uses as much as digits as its factorization.

6531479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 6531479 is about 2555.6758401644. The cubic root of 6531479 is about 186.9263438746.

The spelling of 6531479 in words is "six million, five hundred thirty-one thousand, four hundred seventy-nine".