7973939 has 16 divisors (see below), whose sum is σ = 8916480. Its totient is φ = 7096320.

The previous prime is 7973929. The next prime is 7973941. The reversal of 7973939 is 9393797.

It is a cyclic number.

It is not a de Polignac number, because 7973939 - 2¹⁶ = 7908403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7973893 and 7973902.

It is not an unprimeable number, because it can be changed into a prime (7973929) 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 15 ways as a sum of consecutive naturals, for example, 30899 + ... + 31155.

It is an arithmetic number, because the mean of its divisors is an integer number (557280).

Almost surely, 2^7973939 is an apocalyptic number.

7973939 is a deficient number, since it is larger than the sum of its proper divisors (942541).

7973939 is a wasteful number, since it uses less digits than its factorization.

7973939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its digits is 321489, while the sum is 47.

The square root of 7973939 is about 2823.8163892151. The cubic root of 7973939 is about 199.7825887474.

The spelling of 7973939 in words is "seven million, nine hundred seventy-three thousand, nine hundred thirty-nine".