7965863 has 2 divisors, whose sum is σ = 7965864. Its totient is φ = 7965862.

The previous prime is 7965803. The next prime is 7965871. The reversal of 7965863 is 3685697.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7965863 - 2⁶ = 7965799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7965803) 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 as a sum of consecutive naturals, namely, 3982931 + 3982932.

It is an arithmetic number, because the mean of its divisors is an integer number (3982932).

Almost surely, 2^7965863 is an apocalyptic number.

7965863 is a deficient number, since it is larger than the sum of its proper divisors (1).

7965863 is an equidigital number, since it uses as much as digits as its factorization.

7965863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 7965863 is about 2822.3860473011. The cubic root of 7965863 is about 199.7151194079.

The spelling of 7965863 in words is "seven million, nine hundred sixty-five thousand, eight hundred sixty-three".