7971373 has 2 divisors, whose sum is σ = 7971374. Its totient is φ = 7971372.

The previous prime is 7971347. The next prime is 7971389. The reversal of 7971373 is 3731797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4334724 + 3636649 = 2082^2 + 1907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7971373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7971323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3985686 + 3985687.

It is an arithmetic number, because the mean of its divisors is an integer number (3985687).

Almost surely, 2^7971373 is an apocalyptic number.

It is an amenable number.

7971373 is a deficient number, since it is larger than the sum of its proper divisors (1).

7971373 is an equidigital number, since it uses as much as digits as its factorization.

7971373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27783, while the sum is 37.

The square root of 7971373 is about 2823.3620030028. The cubic root of 7971373 is about 199.7611565492.

The spelling of 7971373 in words is "seven million, nine hundred seventy-one thousand, three hundred seventy-three".