981734903 has 2 divisors, whose sum is σ = 981734904. Its totient is φ = 981734902.

The previous prime is 981734863. The next prime is 981734911. The reversal of 981734903 is 309437189.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (309437189) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981734903 is a prime.

It is a Chen prime.

It is equal to p_49965371 and since 981734903 and 49965371 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (981734983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490867451 + 490867452.

It is an arithmetic number, because the mean of its divisors is an integer number (490867452).

Almost surely, 2^981734903 is an apocalyptic number.

981734903 is a deficient number, since it is larger than the sum of its proper divisors (1).

981734903 is an equidigital number, since it uses as much as digits as its factorization.

981734903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 981734903 is about 31332.6491538778. The cubic root of 981734903 is about 993.8741853532.

The spelling of 981734903 in words is "nine hundred eighty-one million, seven hundred thirty-four thousand, nine hundred three".