1045987 has 2 divisors, whose sum is σ = 1045988. Its totient is φ = 1045986.

The previous prime is 1045981. The next prime is 1045997. The reversal of 1045987 is 7895401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1045987 - 2⁷ = 1045859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1045981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522993 + 522994.

It is an arithmetic number, because the mean of its divisors is an integer number (522994).

2^1045987 is an apocalyptic number.

1045987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045987 is an equidigital number, since it uses as much as digits as its factorization.

1045987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1045987 is about 1022.7350585562. The cubic root of 1045987 is about 101.5099847005.

The spelling of 1045987 in words is "one million, forty-five thousand, nine hundred eighty-seven".