1000947 has 8 divisors (see below), whose sum is σ = 1347280. Its totient is φ = 660960.

The previous prime is 1000931. The next prime is 1000969. The reversal of 1000947 is 7490001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1000947 - 2⁴ = 1000931 is a prime.

It is a Duffinian number.

1000947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1000907) 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 7 ways as a sum of consecutive naturals, for example, 1204 + ... + 1857.

It is an arithmetic number, because the mean of its divisors is an integer number (168410).

2^1000947 is an apocalyptic number.

1000947 is a deficient number, since it is larger than the sum of its proper divisors (346333).

1000947 is a wasteful number, since it uses less digits than its factorization.

1000947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 1000947 is about 1000.4733879519. The cubic root of 1000947 is about 100.0315567074.

Adding to 1000947 its reverse (7490001), we get a palindrome (8490948).

The spelling of 1000947 in words is "one million, nine hundred forty-seven", and thus it is an aban number.