7989522 has 8 divisors (see below), whose sum is σ = 15979056. Its totient is φ = 2663172.

The previous prime is 7989517. The next prime is 7989523. The reversal of 7989522 is 2259897.

It is a sphenic number, since it is the product of 3 distinct primes.

7989522 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7989523) 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, 665788 + ... + 665799.

It is an arithmetic number, because the mean of its divisors is an integer number (1997382).

Almost surely, 2^7989522 is an apocalyptic number.

7989522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7989522 is a wasteful number, since it uses less digits than its factorization.

7989522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331592.

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

The square root of 7989522 is about 2826.5742516339. The cubic root of 7989522 is about 199.9126451846.

The spelling of 7989522 in words is "seven million, nine hundred eighty-nine thousand, five hundred twenty-two".