998705126 has 16 divisors (see below), whose sum is σ = 1572238944. Its totient is φ = 474876864.

The previous prime is 998705107. The next prime is 998705177. The reversal of 998705126 is 621507899.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 54791 + ... + 70706.

It is an arithmetic number, because the mean of its divisors is an integer number (98264934).

Almost surely, 2^998705126 is an apocalyptic number.

998705126 is a deficient number, since it is larger than the sum of its proper divisors (573533818).

998705126 is a wasteful number, since it uses less digits than its factorization.

998705126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125695.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 998705126 is about 31602.2962140412. The cubic root of 998705126 is about 999.5681888993.

The spelling of 998705126 in words is "nine hundred ninety-eight million, seven hundred five thousand, one hundred twenty-six".