7965871 has 2 divisors, whose sum is σ = 7965872. Its totient is φ = 7965870.

The previous prime is 7965863. The next prime is 7965907. The reversal of 7965871 is 1785697.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7965871 - 2³ = 7965863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7965071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3982935 + 3982936.

It is an arithmetic number, because the mean of its divisors is an integer number (3982936).

Almost surely, 2^7965871 is an apocalyptic number.

7965871 is a deficient number, since it is larger than the sum of its proper divisors (1).

7965871 is an equidigital number, since it uses as much as digits as its factorization.

7965871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 43.

The square root of 7965871 is about 2822.3874645413. The cubic root of 7965871 is about 199.7151862649.

It can be divided in two parts, 7965 and 871, that added together give a square (8836 = 94²).

The spelling of 7965871 in words is "seven million, nine hundred sixty-five thousand, eight hundred seventy-one".