1045889 has 8 divisors (see below), whose sum is σ = 1153152. Its totient is φ = 942480.

The previous prime is 1045859. The next prime is 1045903. The reversal of 1045889 is 9885401.

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 1045889 - 2⁸ = 1045633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377 + ... + 1494.

It is an arithmetic number, because the mean of its divisors is an integer number (144144).

2^1045889 is an apocalyptic number.

It is an amenable number.

1045889 is a deficient number, since it is larger than the sum of its proper divisors (107263).

1045889 is a wasteful number, since it uses less digits than its factorization.

1045889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1045889 is about 1022.6871466876. The cubic root of 1045889 is about 101.5068143969.

The spelling of 1045889 in words is "one million, forty-five thousand, eight hundred eighty-nine".