1204643 has 8 divisors (see below), whose sum is σ = 1328880. Its totient is φ = 1082880.

The previous prime is 1204633. The next prime is 1204649. The reversal of 1204643 is 3464021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1204643 - 2¹⁰ = 1203619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503 + ... + 1631.

It is an arithmetic number, because the mean of its divisors is an integer number (166110).

2^1204643 is an apocalyptic number.

1204643 is a deficient number, since it is larger than the sum of its proper divisors (124237).

1204643 is a wasteful number, since it uses less digits than its factorization.

1204643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1204643 is about 1097.5622989152. The cubic root of 1204643 is about 106.4027339735.

Adding to 1204643 its reverse (3464021), we get a palindrome (4668664).

The spelling of 1204643 in words is "one million, two hundred four thousand, six hundred forty-three".