989958103 has 2 divisors, whose sum is σ = 989958104. Its totient is φ = 989958102.

The previous prime is 989958097. The next prime is 989958119. The reversal of 989958103 is 301859989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 989958103 - 2⁵ = 989958071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989958163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494979051 + 494979052.

It is an arithmetic number, because the mean of its divisors is an integer number (494979052).

Almost surely, 2^989958103 is an apocalyptic number.

989958103 is a deficient number, since it is larger than the sum of its proper divisors (1).

989958103 is an equidigital number, since it uses as much as digits as its factorization.

989958103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 52.

The square root of 989958103 is about 31463.5996510253. The cubic root of 989958103 is about 996.6414336603.

The spelling of 989958103 in words is "nine hundred eighty-nine million, nine hundred fifty-eight thousand, one hundred three".