1004879 has 4 divisors (see below), whose sum is σ = 1039560. Its totient is φ = 970200.

The previous prime is 1004873. The next prime is 1004903. The reversal of 1004879 is 9784001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9784001 = 2521 ⋅3881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004879 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 34651 = 1004879 / (1 + 0 + 0 + 4 + 8 + 7 + 9).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004873) 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, 17297 + ... + 17354.

It is an arithmetic number, because the mean of its divisors is an integer number (259890).

2^1004879 is an apocalyptic number.

1004879 is a deficient number, since it is larger than the sum of its proper divisors (34681).

1004879 is an equidigital number, since it uses as much as digits as its factorization.

1004879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34680.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1004879 is about 1002.4365316567. The cubic root of 1004879 is about 100.1623695519.

The spelling of 1004879 in words is "one million, four thousand, eight hundred seventy-nine".