7631328 has 24 divisors (see below), whose sum is σ = 20032488. Its totient is φ = 2543744.

The previous prime is 7631279. The next prime is 7631329. The reversal of 7631328 is 8231367.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×7631328³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7631295 and 7631304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7631329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39651 + ... + 39842.

It is an arithmetic number, because the mean of its divisors is an integer number (834687).

Almost surely, 2^7631328 is an apocalyptic number.

It is an amenable number.

7631328 is an abundant number, since it is smaller than the sum of its proper divisors (12401160).

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

7631328 is a wasteful number, since it uses less digits than its factorization.

7631328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79506 (or 79498 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 7631328 is about 2762.4858370678. The cubic root of 7631328 is about 196.8792925242.

The spelling of 7631328 in words is "seven million, six hundred thirty-one thousand, three hundred twenty-eight".