671112863 has 2 divisors, whose sum is σ = 671112864. Its totient is φ = 671112862.

The previous prime is 671112857. The next prime is 671112943. The reversal of 671112863 is 368211176.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 671112863 - 2⁴ = 671112847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671112853) 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, 335556431 + 335556432.

It is an arithmetic number, because the mean of its divisors is an integer number (335556432).

Almost surely, 2^671112863 is an apocalyptic number.

671112863 is a deficient number, since it is larger than the sum of its proper divisors (1).

671112863 is an equidigital number, since it uses as much as digits as its factorization.

671112863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 671112863 is about 25905.8461162727. The cubic root of 671112863 is about 875.5182184125.

The spelling of 671112863 in words is "six hundred seventy-one million, one hundred twelve thousand, eight hundred sixty-three".