6448345 has 12 divisors (see below), whose sum is σ = 7884396. Its totient is φ = 5062400.

The previous prime is 6448339. The next prime is 6448361. The reversal of 6448345 is 5438446.

It can be written as a sum of positive squares in 6 ways, for example, as 1121481 + 5326864 = 1059^2 + 2308^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6448345 is a prime.

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 6448345.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 57009 + ... + 57121.

It is an arithmetic number, because the mean of its divisors is an integer number (657033).

Almost surely, 2^6448345 is an apocalyptic number.

It is an amenable number.

6448345 is a deficient number, since it is larger than the sum of its proper divisors (1436051).

6448345 is a wasteful number, since it uses less digits than its factorization.

6448345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 219 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The square root of 6448345 is about 2539.3591711296. The cubic root of 6448345 is about 186.1298761472.

The spelling of 6448345 in words is "six million, four hundred forty-eight thousand, three hundred forty-five".