1204889 has 4 divisors (see below), whose sum is σ = 1377024. Its totient is φ = 1032756.

The previous prime is 1204883. The next prime is 1204891. The reversal of 1204889 is 9884021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1204889 - 2⁴ = 1204873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86057 + ... + 86070.

It is an arithmetic number, because the mean of its divisors is an integer number (344256).

2^1204889 is an apocalyptic number.

It is an amenable number.

1204889 is a deficient number, since it is larger than the sum of its proper divisors (172135).

1204889 is an equidigital number, since it uses as much as digits as its factorization.

1204889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172134.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1204889 is about 1097.6743597261. The cubic root of 1204889 is about 106.4099763103.

The spelling of 1204889 in words is "one million, two hundred four thousand, eight hundred eighty-nine".