998899703 has 2 divisors, whose sum is σ = 998899704. Its totient is φ = 998899702.

The previous prime is 998899691. The next prime is 998899709. The reversal of 998899703 is 307998899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998899703 - 2²² = 994705399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998899709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499449851 + 499449852.

It is an arithmetic number, because the mean of its divisors is an integer number (499449852).

Almost surely, 2^998899703 is an apocalyptic number.

998899703 is a deficient number, since it is larger than the sum of its proper divisors (1).

998899703 is an equidigital number, since it uses as much as digits as its factorization.

998899703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8817984, while the sum is 62.

The square root of 998899703 is about 31605.3745904079. The cubic root of 998899703 is about 999.6330997340.

The spelling of 998899703 in words is "nine hundred ninety-eight million, eight hundred ninety-nine thousand, seven hundred three".