1300689 has 12 divisors (see below), whose sum is σ = 2023476. Its totient is φ = 800352.

The previous prime is 1300681. The next prime is 1300709. The reversal of 1300689 is 9860031.

It can be written as a sum of positive squares in 2 ways, for example, as 166464 + 1134225 = 408^2 + 1065^2 .

It is not a de Polignac number, because 1300689 - 2³ = 1300681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1300681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5442 + ... + 5675.

It is an arithmetic number, because the mean of its divisors is an integer number (168623).

2^1300689 is an apocalyptic number.

It is an amenable number.

1300689 is a deficient number, since it is larger than the sum of its proper divisors (722787).

1300689 is a wasteful number, since it uses less digits than its factorization.

1300689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11136 (or 11133 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1300689 is about 1140.4775315630. The cubic root of 1300689 is about 109.1585661750.

The spelling of 1300689 in words is "one million, three hundred thousand, six hundred eighty-nine".