7831648 has 48 divisors (see below), whose sum is σ = 17720640. Its totient is φ = 3369600.

The previous prime is 7831643. The next prime is 7831669. The reversal of 7831648 is 8461387.

It is a happy number.

It is a super-2 number, since 2×7831648² = 122669420791808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7831643) 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, 6103 + ... + 7273.

It is an arithmetic number, because the mean of its divisors is an integer number (369180).

Almost surely, 2^7831648 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 7831648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8860320).

7831648 is an abundant number, since it is smaller than the sum of its proper divisors (9888992).

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

7831648 is a wasteful number, since it uses less digits than its factorization.

7831648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1203 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 7831648 is about 2798.5081740099. The cubic root of 7831648 is about 198.5871088640.

The spelling of 7831648 in words is "seven million, eight hundred thirty-one thousand, six hundred forty-eight".