7989504 has 72 divisors (see below), whose sum is σ = 21682752. Its totient is φ = 2611200.

The previous prime is 7989493. The next prime is 7989517. The reversal of 7989504 is 4059897.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77517 + ... + 77619.

Almost surely, 2^7989504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7989504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10841376).

7989504 is an abundant number, since it is smaller than the sum of its proper divisors (13693248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7989504 is a wasteful number, since it uses less digits than its factorization.

7989504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 7989504 is about 2826.5710675658. The cubic root of 7989504 is about 199.9124950533.

The spelling of 7989504 in words is "seven million, nine hundred eighty-nine thousand, five hundred four".