1045887 has 4 divisors (see below), whose sum is σ = 1394520. Its totient is φ = 697256.

The previous prime is 1045859. The next prime is 1045903. The reversal of 1045887 is 7885401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1045887 - 2¹¹ = 1043839 is a prime.

It is a D-number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174312 + ... + 174317.

It is an arithmetic number, because the mean of its divisors is an integer number (348630).

2^1045887 is an apocalyptic number.

1045887 is a deficient number, since it is larger than the sum of its proper divisors (348633).

1045887 is an equidigital number, since it uses as much as digits as its factorization.

1045887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348632.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 1045887 is about 1022.6861688710. The cubic root of 1045887 is about 101.5067496947.

The spelling of 1045887 in words is "one million, forty-five thousand, eight hundred eighty-seven".