1304687 has 2 divisors, whose sum is σ = 1304688. Its totient is φ = 1304686.

The previous prime is 1304669. The next prime is 1304707. The reversal of 1304687 is 7864031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1304687 - 2¹⁶ = 1239151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304627) 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 as a sum of consecutive naturals, namely, 652343 + 652344.

It is an arithmetic number, because the mean of its divisors is an integer number (652344).

2^1304687 is an apocalyptic number.

1304687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304687 is an equidigital number, since it uses as much as digits as its factorization.

1304687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1304687 is about 1142.2289612858. The cubic root of 1304687 is about 109.2702940270.

It can be divided in two parts, 130468 and 7, that multiplied together give a triangular number (913276 = T₁₃₅₁).

The spelling of 1304687 in words is "one million, three hundred four thousand, six hundred eighty-seven".