1304887 has 2 divisors, whose sum is σ = 1304888. Its totient is φ = 1304886.

The previous prime is 1304867. The next prime is 1304893. The reversal of 1304887 is 7884031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1304887 - 2¹¹ = 1302839 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 (1304837) 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, 652443 + 652444.

It is an arithmetic number, because the mean of its divisors is an integer number (652444).

2^1304887 is an apocalyptic number.

1304887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304887 is an equidigital number, since it uses as much as digits as its factorization.

1304887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1304887 is about 1142.3165060525. The cubic root of 1304887 is about 109.2758772160.

The spelling of 1304887 in words is "one million, three hundred four thousand, eight hundred eighty-seven".