6499379 has 2 divisors, whose sum is σ = 6499380. Its totient is φ = 6499378.

The previous prime is 6499373. The next prime is 6499391. The reversal of 6499379 is 9739946.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6499379 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6499373) 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 as a sum of consecutive naturals, namely, 3249689 + 3249690.

It is an arithmetic number, because the mean of its divisors is an integer number (3249690).

Almost surely, 2^6499379 is an apocalyptic number.

6499379 is a deficient number, since it is larger than the sum of its proper divisors (1).

6499379 is an equidigital number, since it uses as much as digits as its factorization.

6499379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 47.

The square root of 6499379 is about 2549.3879657675. The cubic root of 6499379 is about 186.6196143454.

It can be divided in two parts, 649937 and 9, that added together give a palindrome (649946).

The spelling of 6499379 in words is "six million, four hundred ninety-nine thousand, three hundred seventy-nine".