7999320 has 128 divisors (see below), whose sum is σ = 27993600. Its totient is φ = 1790976.

The previous prime is 7999319. The next prime is 7999339. The reversal of 7999320 is 239997.

7999320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74707 + ... + 74813.

It is an arithmetic number, because the mean of its divisors is an integer number (218700).

Almost surely, 2^7999320 is an apocalyptic number.

7999320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7999320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13996800).

7999320 is an abundant number, since it is smaller than the sum of its proper divisors (19994280).

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

7999320 is a wasteful number, since it uses less digits than its factorization.

7999320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 7999320 is about 2828.3069140389. The cubic root of 7999320 is about 199.9943331728.

It can be divided in two parts, 79 and 99320, that added together give a palindrome (99399).

The spelling of 7999320 in words is "seven million, nine hundred ninety-nine thousand, three hundred twenty".