7928065 has 8 divisors (see below), whose sum is σ = 9529128. Its totient is φ = 6332160.

The previous prime is 7928059. The next prime is 7928083. The reversal of 7928065 is 5608297.

7928065 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 138384 + 7789681 = 372^2 + 2791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7928065 - 2⁷ = 7927937 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4329 + ... + 5881.

It is an arithmetic number, because the mean of its divisors is an integer number (1191141).

Almost surely, 2^7928065 is an apocalyptic number.

It is an amenable number.

7928065 is a deficient number, since it is larger than the sum of its proper divisors (1601063).

7928065 is a wasteful number, since it uses less digits than its factorization.

7928065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 7928065 is about 2815.6819777809. The cubic root of 7928065 is about 199.3987358854.

The spelling of 7928065 in words is "seven million, nine hundred twenty-eight thousand, sixty-five".