7973730 has 48 divisors (see below), whose sum is σ = 21827520. Its totient is φ = 2013984.

The previous prime is 7973723. The next prime is 7973741. The reversal of 7973730 is 373797.

It is a super-2 number, since 2×7973730² = 127160740225800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 622 + ... + 4041.

It is an arithmetic number, because the mean of its divisors is an integer number (454740).

Almost surely, 2^7973730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7973730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10913760).

7973730 is an abundant number, since it is smaller than the sum of its proper divisors (13853790).

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

7973730 is a wasteful number, since it uses less digits than its factorization.

7973730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695 (or 4692 counting only the distinct ones).

The product of its (nonzero) digits is 27783, while the sum is 36.

The square root of 7973730 is about 2823.7793823173. The cubic root of 7973730 is about 199.7808432727.

The spelling of 7973730 in words is "seven million, nine hundred seventy-three thousand, seven hundred thirty".