1047005 has 4 divisors (see below), whose sum is σ = 1256412. Its totient is φ = 837600.

The previous prime is 1046999. The next prime is 1047031. The reversal of 1047005 is 5007401.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 206116 + 840889 = 454^2 + 917^2 .

It is not a de Polignac number, because 1047005 - 2¹⁰ = 1045981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104696 + ... + 104705.

It is an arithmetic number, because the mean of its divisors is an integer number (314103).

2^1047005 is an apocalyptic number.

It is an amenable number.

1047005 is a deficient number, since it is larger than the sum of its proper divisors (209407).

1047005 is an equidigital number, since it uses as much as digits as its factorization.

1047005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209406.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1047005 is about 1023.2326226230. The cubic root of 1047005 is about 101.5429053322.

The spelling of 1047005 in words is "one million, forty-seven thousand, five".