7989340 has 24 divisors (see below), whose sum is σ = 16877952. Its totient is φ = 3176640.

The previous prime is 7989323. The next prime is 7989341. The reversal of 7989340 is 439897.

7989340 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 7989293 and 7989302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7989341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517 + ... + 4723.

It is an arithmetic number, because the mean of its divisors is an integer number (703248).

Almost surely, 2^7989340 is an apocalyptic number.

It is an amenable number.

7989340 is an abundant number, since it is smaller than the sum of its proper divisors (8888612).

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

7989340 is a wasteful number, since it uses less digits than its factorization.

7989340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 7989340 is about 2826.5420570018. The cubic root of 7989340 is about 199.9111271806.

The spelling of 7989340 in words is "seven million, nine hundred eighty-nine thousand, three hundred forty".