1889289 has 12 divisors (see below), whose sum is σ = 2847936. Its totient is φ = 1204632.

The previous prime is 1889287. The next prime is 1889309. The reversal of 1889289 is 9829881.

It is not a de Polignac number, because 1889289 - 2¹ = 1889287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1889287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4357 + ... + 4770.

It is an arithmetic number, because the mean of its divisors is an integer number (237328).

2^1889289 is an apocalyptic number.

It is an amenable number.

1889289 is a deficient number, since it is larger than the sum of its proper divisors (958647).

1889289 is a wasteful number, since it uses less digits than its factorization.

1889289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9156 (or 9153 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 1889289 is about 1374.5140959626. The cubic root of 1889289 is about 123.6230531669.

It can be divided in two parts, 18892 and 89, that added together give a palindrome (18981).

The spelling of 1889289 in words is "one million, eight hundred eighty-nine thousand, two hundred eighty-nine".