1004579989 has 16 divisors (see below), whose sum is σ = 1213972480. Its totient is φ = 812067120.

The previous prime is 1004579957. The next prime is 1004580011. The reversal of 1004579989 is 9899754001.

It is a cyclic number.

It is not a de Polignac number, because 1004579989 - 2⁵ = 1004579957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004579189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12724 + ... + 46594.

It is an arithmetic number, because the mean of its divisors is an integer number (75873280).

Almost surely, 2^1004579989 is an apocalyptic number.

1004579989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1004579989 is a deficient number, since it is larger than the sum of its proper divisors (209392491).

1004579989 is a wasteful number, since it uses less digits than its factorization.

1004579989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34120.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 1004579989 is about 31695.1098594089. The cubic root of 1004579989 is about 1001.5243382124.

The spelling of 1004579989 in words is "one billion, four million, five hundred seventy-nine thousand, nine hundred eighty-nine".