1004359999 has 4 divisors (see below), whose sum is σ = 1004498280. Its totient is φ = 1004221720.

The previous prime is 1004359997. The next prime is 1004360011. The reversal of 1004359999 is 9999534001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1004359999 - 2¹ = 1004359997 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (1004359997) 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, 57604 + ... + 72985.

It is an arithmetic number, because the mean of its divisors is an integer number (251124570).

Almost surely, 2^1004359999 is an apocalyptic number.

1004359999 is a deficient number, since it is larger than the sum of its proper divisors (138281).

1004359999 is an equidigital number, since it uses as much as digits as its factorization.

1004359999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138280.

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 1004359999 is about 31691.6392602213. The cubic root of 1004359999 is about 1001.4512259245.

The spelling of 1004359999 in words is "one billion, four million, three hundred fifty-nine thousand, nine hundred ninety-nine".