1304947 has 8 divisors (see below), whose sum is σ = 1498976. Its totient is φ = 1112832.

The previous prime is 1304929. The next prime is 1304957. The reversal of 1304947 is 7494031.

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

It is a de Polignac number, because none of the positive numbers 2^k-1304947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304957) 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, 1603 + ... + 2275.

It is an arithmetic number, because the mean of its divisors is an integer number (187372).

2^1304947 is an apocalyptic number.

1304947 is a deficient number, since it is larger than the sum of its proper divisors (194029).

1304947 is an equidigital number, since it uses as much as digits as its factorization.

1304947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1304947 is about 1142.3427681742. The cubic root of 1304947 is about 109.2775520614.

Adding to 1304947 its reverse (7494031), we get a palindrome (8798978).

The spelling of 1304947 in words is "one million, three hundred four thousand, nine hundred forty-seven".