7081648 has 40 divisors (see below), whose sum is σ = 15990048. Its totient is φ = 2975232.

The previous prime is 7081637. The next prime is 7081649. The reversal of 7081648 is 8461807.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7081649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5340 + ... + 6532.

Almost surely, 2^7081648 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 7081648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7995024).

7081648 is an abundant number, since it is smaller than the sum of its proper divisors (8908400).

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

7081648 is a wasteful number, since it uses less digits than its factorization.

7081648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 7081648 is about 2661.1365992748. The cubic root of 7081648 is about 192.0339928239.

It can be divided in two parts, 70 and 81648, that added together give a palindrome (81718).

The spelling of 7081648 in words is "seven million, eighty-one thousand, six hundred forty-eight".