1889085 has 24 divisors (see below), whose sum is σ = 3328416. Its totient is φ = 907360.

The previous prime is 1889081. The next prime is 1889087. The reversal of 1889085 is 5809881.

It is not a de Polignac number, because 1889085 - 2² = 1889081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889081) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 17602 + ... + 17708.

It is an arithmetic number, because the mean of its divisors is an integer number (138684).

2^1889085 is an apocalyptic number.

1889085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1889085 is a deficient number, since it is larger than the sum of its proper divisors (1439331).

1889085 is a wasteful number, since it uses less digits than its factorization.

1889085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 1889085 is about 1374.4398859172. The cubic root of 1889085 is about 123.6186035194.

The spelling of 1889085 in words is "one million, eight hundred eighty-nine thousand, eighty-five".