6448479 has 4 divisors (see below), whose sum is σ = 8597976. Its totient is φ = 4298984.

The previous prime is 6448451. The next prime is 6448483. The reversal of 6448479 is 9748446.

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

It is a cyclic number.

It is not a de Polignac number, because 6448479 - 2⁸ = 6448223 is a prime.

It is a D-number.

6448479 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6448479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448489) 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, 1074744 + ... + 1074749.

It is an arithmetic number, because the mean of its divisors is an integer number (2149494).

Almost surely, 2^6448479 is an apocalyptic number.

6448479 is a deficient number, since it is larger than the sum of its proper divisors (2149497).

6448479 is a wasteful number, since it uses less digits than its factorization.

6448479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149496.

The product of its digits is 193536, while the sum is 42.

The square root of 6448479 is about 2539.3855556020. The cubic root of 6448479 is about 186.1311654305.

The spelling of 6448479 in words is "six million, four hundred forty-eight thousand, four hundred seventy-nine".