816712903 has 2 divisors, whose sum is σ = 816712904. Its totient is φ = 816712902.

The previous prime is 816712873. The next prime is 816712921. The reversal of 816712903 is 309217618.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816712903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816712943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408356451 + 408356452.

It is an arithmetic number, because the mean of its divisors is an integer number (408356452).

Almost surely, 2^816712903 is an apocalyptic number.

816712903 is a deficient number, since it is larger than the sum of its proper divisors (1).

816712903 is an equidigital number, since it uses as much as digits as its factorization.

816712903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 816712903 is about 28578.1892883367. The cubic root of 816712903 is about 934.7378002146.

The spelling of 816712903 in words is "eight hundred sixteen million, seven hundred twelve thousand, nine hundred three".