7873871 has 2 divisors, whose sum is σ = 7873872. Its totient is φ = 7873870.

The previous prime is 7873849. The next prime is 7873897. The reversal of 7873871 is 1783787.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7873871 - 2²² = 3679567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7873841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936935 + 3936936.

It is an arithmetic number, because the mean of its divisors is an integer number (3936936).

Almost surely, 2^7873871 is an apocalyptic number.

7873871 is a deficient number, since it is larger than the sum of its proper divisors (1).

7873871 is an equidigital number, since it uses as much as digits as its factorization.

7873871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 41.

The square root of 7873871 is about 2806.0418742421. The cubic root of 7873871 is about 198.9433523096.

The spelling of 7873871 in words is "seven million, eight hundred seventy-three thousand, eight hundred seventy-one".