7973720 has 16 divisors (see below), whose sum is σ = 17940960. Its totient is φ = 3189472.

The previous prime is 7973701. The next prime is 7973723. The reversal of 7973720 is 273797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7973723) 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 3 ways as a sum of consecutive naturals, for example, 99632 + ... + 99711.

It is an arithmetic number, because the mean of its divisors is an integer number (1121310).

Almost surely, 2^7973720 is an apocalyptic number.

It is an amenable number.

7973720 is an abundant number, since it is smaller than the sum of its proper divisors (9967240).

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

7973720 is a wasteful number, since it uses less digits than its factorization.

7973720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199354 (or 199350 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 35.

The square root of 7973720 is about 2823.7776116401. Note that the first 3 decimals coincide. The cubic root of 7973720 is about 199.7807597564.

The spelling of 7973720 in words is "seven million, nine hundred seventy-three thousand, seven hundred twenty".