6448724 has 6 divisors (see below), whose sum is σ = 11285274. Its totient is φ = 3224360.

The previous prime is 6448699. The next prime is 6448781. The reversal of 6448724 is 4278446.

It can be written as a sum of positive squares in only one way, i.e., 6002500 + 446224 = 2450^2 + 668^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806087 + ... + 806094.

It is an arithmetic number, because the mean of its divisors is an integer number (1880879).

Almost surely, 2^6448724 is an apocalyptic number.

It is an amenable number.

6448724 is a deficient number, since it is larger than the sum of its proper divisors (4836550).

6448724 is a wasteful number, since it uses less digits than its factorization.

6448724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612185 (or 1612183 counting only the distinct ones).

The product of its digits is 43008, while the sum is 35.

The square root of 6448724 is about 2539.4337951599. The cubic root of 6448724 is about 186.1335226561.

The spelling of 6448724 in words is "six million, four hundred forty-eight thousand, seven hundred twenty-four".