1330947 has 12 divisors (see below), whose sum is σ = 2035800. Its totient is φ = 835008.

The previous prime is 1330943. The next prime is 1330957. The reversal of 1330947 is 7490331.

It is not a de Polignac number, because 1330947 - 2² = 1330943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1330947.

It is not an unprimeable number, because it can be changed into a prime (1330943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4197 + ... + 4502.

It is an arithmetic number, because the mean of its divisors is an integer number (169650).

2^1330947 is an apocalyptic number.

1330947 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1330947 is a deficient number, since it is larger than the sum of its proper divisors (704853).

1330947 is a wasteful number, since it uses less digits than its factorization.

1330947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8722 (or 8719 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1330947 is about 1153.6667629779. Note that the first 3 decimals coincide. The cubic root of 1330947 is about 109.9985399255.

The spelling of 1330947 in words is "one million, three hundred thirty thousand, nine hundred forty-seven".