1628065 has 8 divisors (see below), whose sum is σ = 1961280. Its totient is φ = 1297392.

The previous prime is 1628063. The next prime is 1628071. The reversal of 1628065 is 5608261.

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 1628065 - 2¹ = 1628063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1628063) 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 7 ways as a sum of consecutive naturals, for example, 1342 + ... + 2248.

It is an arithmetic number, because the mean of its divisors is an integer number (245160).

2^1628065 is an apocalyptic number.

It is an amenable number.

1628065 is a deficient number, since it is larger than the sum of its proper divisors (333215).

1628065 is an equidigital number, since it uses as much as digits as its factorization.

1628065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1628065 is about 1275.9565039609. The cubic root of 1628065 is about 117.6406042782.

The spelling of 1628065 in words is "one million, six hundred twenty-eight thousand, sixty-five".