1628085 has 16 divisors (see below), whose sum is σ = 2620800. Its totient is φ = 863040.

The previous prime is 1628071. The next prime is 1628093. The reversal of 1628085 is 5808261.

It is not a de Polignac number, because 1628085 - 2⁹ = 1627573 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4491 + ... + 4839.

It is an arithmetic number, because the mean of its divisors is an integer number (163800).

2^1628085 is an apocalyptic number.

1628085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1628085 is a deficient number, since it is larger than the sum of its proper divisors (992715).

1628085 is a wasteful number, since it uses less digits than its factorization.

1628085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1628085 is about 1275.9643411945. The cubic root of 1628085 is about 117.6410859958.

The spelling of 1628085 in words is "one million, six hundred twenty-eight thousand, eighty-five".