1173489 has 4 divisors (see below), whose sum is σ = 1564656. Its totient is φ = 782324.

The previous prime is 1173481. The next prime is 1173511. The reversal of 1173489 is 9843711.

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 1173489 - 2³ = 1173481 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1173481) 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 in 3 ways as a sum of consecutive naturals, for example, 195579 + ... + 195584.

It is an arithmetic number, because the mean of its divisors is an integer number (391164).

2^1173489 is an apocalyptic number.

It is an amenable number.

1173489 is a deficient number, since it is larger than the sum of its proper divisors (391167).

1173489 is an equidigital number, since it uses as much as digits as its factorization.

1173489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391166.

The product of its digits is 6048, while the sum is 33.

The square root of 1173489 is about 1083.2769728929. The cubic root of 1173489 is about 105.4774627480.

The spelling of 1173489 in words is "one million, one hundred seventy-three thousand, four hundred eighty-nine".