7663871 has 2 divisors, whose sum is σ = 7663872. Its totient is φ = 7663870.

The previous prime is 7663829. The next prime is 7663907. The reversal of 7663871 is 1783667.

7663871 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (1783667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7663871 - 2¹⁰ = 7662847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7663171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3831935 + 3831936.

It is an arithmetic number, because the mean of its divisors is an integer number (3831936).

Almost surely, 2^7663871 is an apocalyptic number.

7663871 is a deficient number, since it is larger than the sum of its proper divisors (1).

7663871 is an equidigital number, since it uses as much as digits as its factorization.

7663871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 7663871 is about 2768.3697368668. The cubic root of 7663871 is about 197.1587527066.

The spelling of 7663871 in words is "seven million, six hundred sixty-three thousand, eight hundred seventy-one".