1009975 has 12 divisors (see below), whose sum is σ = 1272240. Its totient is φ = 795200.

The previous prime is 1009963. The next prime is 1009991. The reversal of 1009975 is 5799001.

It is not a de Polignac number, because 1009975 - 2¹³ = 1001783 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1491 + ... + 2059.

It is an arithmetic number, because the mean of its divisors is an integer number (106020).

2^1009975 is an apocalyptic number.

1009975 is a deficient number, since it is larger than the sum of its proper divisors (262265).

1009975 is an equidigital number, since it uses as much as digits as its factorization.

1009975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 31.

The square root of 1009975 is about 1004.9751240702. The cubic root of 1009975 is about 100.3314005237.

The spelling of 1009975 in words is "one million, nine thousand, nine hundred seventy-five".