1040987 has 6 divisors (see below), whose sum is σ = 1067652. Its totient is φ = 1014972.

The previous prime is 1040981. The next prime is 1040989. The reversal of 1040987 is 7890401.

It is not a de Polignac number, because 1040987 - 2⁸ = 1040731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040981) 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 5 ways as a sum of consecutive naturals, for example, 1568 + ... + 2130.

It is an arithmetic number, because the mean of its divisors is an integer number (177942).

2^1040987 is an apocalyptic number.

1040987 is a deficient number, since it is larger than the sum of its proper divisors (26665).

1040987 is an frugal number, since it uses more digits than its factorization.

1040987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1040987 is about 1020.2877045226. The cubic root of 1040987 is about 101.3479811562.

The spelling of 1040987 in words is "one million, forty thousand, nine hundred eighty-seven".