1304669 has 2 divisors, whose sum is σ = 1304670. Its totient is φ = 1304668.

The previous prime is 1304659. The next prime is 1304687. The reversal of 1304669 is 9664031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 722500 + 582169 = 850^2 + 763^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304669 - 2¹² = 1300573 is a prime.

It is a super-2 number, since 2×1304669² = 3404322399122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652334 + 652335.

It is an arithmetic number, because the mean of its divisors is an integer number (652335).

2^1304669 is an apocalyptic number.

It is an amenable number.

1304669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304669 is an equidigital number, since it uses as much as digits as its factorization.

1304669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1304669 is about 1142.2210819277. The cubic root of 1304669 is about 109.2697915120.

The spelling of 1304669 in words is "one million, three hundred four thousand, six hundred sixty-nine".