993855103 has 2 divisors, whose sum is σ = 993855104. Its totient is φ = 993855102.

The previous prime is 993855101. The next prime is 993855167. The reversal of 993855103 is 301558399.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 993855103 - 2¹ = 993855101 is a prime.

Together with 993855101, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 993855103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993855101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496927551 + 496927552.

It is an arithmetic number, because the mean of its divisors is an integer number (496927552).

Almost surely, 2^993855103 is an apocalyptic number.

993855103 is a deficient number, since it is larger than the sum of its proper divisors (1).

993855103 is an equidigital number, since it uses as much as digits as its factorization.

993855103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 993855103 is about 31525.4675302366. The cubic root of 993855103 is about 997.9474910894.

The spelling of 993855103 in words is "nine hundred ninety-three million, eight hundred fifty-five thousand, one hundred three".