7864448 has 16 divisors (see below), whose sum is σ = 15667710. Its totient is φ = 3932160.

The previous prime is 7864447. The next prime is 7864471. The reversal of 7864448 is 8444687.

It can be written as a sum of positive squares in only one way, i.e., 6927424 + 937024 = 2632^2 + 968^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (7864447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30593 + ... + 30848.

Almost surely, 2^7864448 is an apocalyptic number.

It is an amenable number.

7864448 is a deficient number, since it is larger than the sum of its proper divisors (7803262).

7864448 is an equidigital number, since it uses as much as digits as its factorization.

7864448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61455 (or 61443 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 7864448 is about 2804.3623161068. The cubic root of 7864448 is about 198.8639592754.

The spelling of 7864448 in words is "seven million, eight hundred sixty-four thousand, four hundred forty-eight".