7681832 has 8 divisors (see below), whose sum is σ = 14403450. Its totient is φ = 3840912.

The previous prime is 7681819. The next prime is 7681837. The reversal of 7681832 is 2381867.

It can be written as a sum of positive squares in only one way, i.e., 4605316 + 3076516 = 2146^2 + 1754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 7681792 and 7681801.

It is not an unprimeable number, because it can be changed into a prime (7681837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480107 + ... + 480122.

Almost surely, 2^7681832 is an apocalyptic number.

It is an amenable number.

7681832 is a deficient number, since it is larger than the sum of its proper divisors (6721618).

7681832 is a wasteful number, since it uses less digits than its factorization.

7681832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960235 (or 960231 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 7681832 is about 2771.6118054302. The cubic root of 7681832 is about 197.3126525482.

Adding to 7681832 its sum of digits (35), we get a palindrome (7681867).

The spelling of 7681832 in words is "seven million, six hundred eighty-one thousand, eight hundred thirty-two".