7864648 has 16 divisors (see below), whose sum is σ = 16086960. Its totient is φ = 3574800.

The previous prime is 7864639. The next prime is 7864673. The reversal of 7864648 is 8464687.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44598 + ... + 44773.

It is an arithmetic number, because the mean of its divisors is an integer number (1005435).

Almost surely, 2^7864648 is an apocalyptic number.

It is an amenable number.

7864648 is an abundant number, since it is smaller than the sum of its proper divisors (8222312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7864648 is a wasteful number, since it uses less digits than its factorization.

7864648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89388 (or 89384 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 7864648 is about 2804.3979746106. The cubic root of 7864648 is about 198.8656450243.

The spelling of 7864648 in words is "seven million, eight hundred sixty-four thousand, six hundred forty-eight".