814641983 has 2 divisors, whose sum is σ = 814641984. Its totient is φ = 814641982.

The previous prime is 814641979. The next prime is 814642019. The reversal of 814641983 is 389146418.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 814641983 - 2² = 814641979 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814643983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407320991 + 407320992.

It is an arithmetic number, because the mean of its divisors is an integer number (407320992).

Almost surely, 2^814641983 is an apocalyptic number.

814641983 is a deficient number, since it is larger than the sum of its proper divisors (1).

814641983 is an equidigital number, since it uses as much as digits as its factorization.

814641983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 44.

The square root of 814641983 is about 28541.9337642004. The cubic root of 814641983 is about 933.9470671566.

The spelling of 814641983 in words is "eight hundred fourteen million, six hundred forty-one thousand, nine hundred eighty-three".