203473871 has 2 divisors, whose sum is σ = 203473872. Its totient is φ = 203473870.

The previous prime is 203473843. The next prime is 203473873. The reversal of 203473871 is 178374302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203473871 is a prime.

Together with 203473873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203473873) 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, 101736935 + 101736936.

It is an arithmetic number, because the mean of its divisors is an integer number (101736936).

Almost surely, 2^203473871 is an apocalyptic number.

203473871 is a deficient number, since it is larger than the sum of its proper divisors (1).

203473871 is an equidigital number, since it uses as much as digits as its factorization.

203473871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 203473871 is about 14264.4267673118. The cubic root of 203473871 is about 588.1700178984.

The spelling of 203473871 in words is "two hundred three million, four hundred seventy-three thousand, eight hundred seventy-one".