7920648 has 48 divisors (see below), whose sum is σ = 22389120. Its totient is φ = 2524896.

The previous prime is 7920641. The next prime is 7920677. The reversal of 7920648 is 8460297.

7920648 is a `hidden beast` number, since 7 + 9 + 2 + 0 + 648 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 736 + ... + 4047.

It is an arithmetic number, because the mean of its divisors is an integer number (466440).

Almost surely, 2^7920648 is an apocalyptic number.

It is an amenable number.

7920648 is an abundant number, since it is smaller than the sum of its proper divisors (14468472).

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

7920648 is a wasteful number, since it uses less digits than its factorization.

7920648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818 (or 4811 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 7920648 is about 2814.3645819261. The cubic root of 7920648 is about 199.3365348370.

The spelling of 7920648 in words is "seven million, nine hundred twenty thousand, six hundred forty-eight".