1928065 has 8 divisors (see below), whose sum is σ = 2393640. Its totient is φ = 1489152.

The previous prime is 1928041. The next prime is 1928071. The reversal of 1928065 is 5608291.

It can be written as a sum of positive squares in 4 ways, for example, as 1521 + 1926544 = 39^2 + 1388^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1928065 - 2⁹ = 1927553 is a prime.

1928065 is a lucky number.

It is a congruent 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, 6504 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (299205).

2^1928065 is an apocalyptic number.

It is an amenable number.

1928065 is a deficient number, since it is larger than the sum of its proper divisors (465575).

1928065 is a wasteful number, since it uses less digits than its factorization.

1928065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1928065 is about 1388.5478025621. The cubic root of 1928065 is about 124.4630837361.

The spelling of 1928065 in words is "one million, nine hundred twenty-eight thousand, sixty-five".