1004459 has 4 divisors (see below), whose sum is σ = 1029000. Its totient is φ = 979920.

The previous prime is 1004453. The next prime is 1004461. The reversal of 1004459 is 9544001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9544001 = 31 ⋅307871.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004459 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004453) 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, 12209 + ... + 12290.

It is an arithmetic number, because the mean of its divisors is an integer number (257250).

2^1004459 is an apocalyptic number.

1004459 is a deficient number, since it is larger than the sum of its proper divisors (24541).

1004459 is an equidigital number, since it uses as much as digits as its factorization.

1004459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24540.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1004459 is about 1002.2270201905. The cubic root of 1004459 is about 100.1484129603.

The spelling of 1004459 in words is "one million, four thousand, four hundred fifty-nine".