7782648 has 48 divisors (see below), whose sum is σ = 20372520. Its totient is φ = 2477376.

The previous prime is 7782641. The next prime is 7782659. The reversal of 7782648 is 8462877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7782641) 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, 12390 + ... + 13002.

Almost surely, 2^7782648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7782648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10186260).

7782648 is an abundant number, since it is smaller than the sum of its proper divisors (12589872).

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

7782648 is a wasteful number, since it uses less digits than its factorization.

7782648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 641 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The square root of 7782648 is about 2789.7397728104. The cubic root of 7782648 is about 198.1720777312.

The spelling of 7782648 in words is "seven million, seven hundred eighty-two thousand, six hundred forty-eight".