8128732 has 12 divisors (see below), whose sum is σ = 14974120. Its totient is φ = 3850416.

The previous prime is 8128723. The next prime is 8128733. The reversal of 8128732 is 2378218.

It is a junction number, because it is equal to n+sod(n) for n = 8128694 and 8128703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8128733) 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, 53403 + ... + 53554.

Almost surely, 2^8128732 is an apocalyptic number.

It is an amenable number.

8128732 is a deficient number, since it is larger than the sum of its proper divisors (6845388).

8128732 is a wasteful number, since it uses less digits than its factorization.

8128732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106980 (or 106978 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 8128732 is about 2851.0931236983. The cubic root of 8128732 is about 201.0670634201.

The spelling of 8128732 in words is "eight million, one hundred twenty-eight thousand, seven hundred thirty-two".