8380928 has 20 divisors (see below), whose sum is σ = 16746510. Its totient is φ = 4190208.

The previous prime is 8380927. The next prime is 8380969. The reversal of 8380928 is 8290838.

It can be written as a sum of positive squares in only one way, i.e., 7661824 + 719104 = 2768^2 + 848^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8380891 and 8380900.

It is not an unprimeable number, because it can be changed into a prime (8380921) 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 as a sum of consecutive naturals, namely, 7673 + ... + 8696.

Almost surely, 2^8380928 is an apocalyptic number.

It is an amenable number.

8380928 is a deficient number, since it is larger than the sum of its proper divisors (8365582).

8380928 is an equidigital number, since it uses as much as digits as its factorization.

8380928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16387 (or 16371 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 8380928 is about 2894.9832469291. The cubic root of 8380928 is about 203.1253078654.

The spelling of 8380928 in words is "eight million, three hundred eighty thousand, nine hundred twenty-eight".