1004669989 has 4 divisors (see below), whose sum is σ = 1005529120. Its totient is φ = 1003810860.

The previous prime is 1004669987. The next prime is 1004669999. The reversal of 1004669989 is 9899664001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9899664001 = 281 ⋅35230121.

It is a cyclic number.

It is not a de Polignac number, because 1004669989 - 2¹ = 1004669987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004669983) 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, 427809 + ... + 430150.

It is an arithmetic number, because the mean of its divisors is an integer number (251382280).

Almost surely, 2^1004669989 is an apocalyptic number.

It is an amenable number.

1004669989 is a deficient number, since it is larger than the sum of its proper divisors (859131).

1004669989 is an equidigital number, since it uses as much as digits as its factorization.

1004669989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859130.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 1004669989 is about 31696.5296049899. The cubic root of 1004669989 is about 1001.5542460676.

The spelling of 1004669989 in words is "one billion, four million, six hundred sixty-nine thousand, nine hundred eighty-nine".