7938971 has 4 divisors (see below), whose sum is σ = 7948632. Its totient is φ = 7929312.

The previous prime is 7938929. The next prime is 7938977. The reversal of 7938971 is 1798397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1798397 = 349 ⋅5153.

It is a cyclic number.

It is not a de Polignac number, because 7938971 - 2⁶ = 7938907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7938977) 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, 3470 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (1987158).

Almost surely, 2^7938971 is an apocalyptic number.

7938971 is a deficient number, since it is larger than the sum of its proper divisors (9661).

7938971 is an equidigital number, since it uses as much as digits as its factorization.

7938971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660.

The product of its digits is 95256, while the sum is 44.

The square root of 7938971 is about 2817.6179655872. The cubic root of 7938971 is about 199.4901262484.

The spelling of 7938971 in words is "seven million, nine hundred thirty-eight thousand, nine hundred seventy-one".