82123903 has 2 divisors, whose sum is σ = 82123904. Its totient is φ = 82123902.

The previous prime is 82123849. The next prime is 82123907. The reversal of 82123903 is 30932128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82123903 - 2¹³ = 82115711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82123907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41061951 + 41061952.

It is an arithmetic number, because the mean of its divisors is an integer number (41061952).

Almost surely, 2^82123903 is an apocalyptic number.

82123903 is a deficient number, since it is larger than the sum of its proper divisors (1).

82123903 is an equidigital number, since it uses as much as digits as its factorization.

82123903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 82123903 is about 9062.2239544165. The cubic root of 82123903 is about 434.6668572735. Note that the first 3 decimals are identical.

The spelling of 82123903 in words is "eighty-two million, one hundred twenty-three thousand, nine hundred three".