1204669 has 2 divisors, whose sum is σ = 1204670. Its totient is φ = 1204668.

The previous prime is 1204649. The next prime is 1204681. The reversal of 1204669 is 9664021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 700569 + 504100 = 837^2 + 710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204669 is a prime.

It is a super-2 number, since 2×1204669² = 2902454799122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204649) 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 as a sum of consecutive naturals, namely, 602334 + 602335.

It is an arithmetic number, because the mean of its divisors is an integer number (602335).

2^1204669 is an apocalyptic number.

It is an amenable number.

1204669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204669 is an equidigital number, since it uses as much as digits as its factorization.

1204669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1204669 is about 1097.5741432814. The cubic root of 1204669 is about 106.4034994703.

The spelling of 1204669 in words is "one million, two hundred four thousand, six hundred sixty-nine".