998150855 has 64 divisors (see below), whose sum is σ = 1386927360. Its totient is φ = 684343296.

The previous prime is 998150843. The next prime is 998150861. The reversal of 998150855 is 558051899.

It is not a de Polignac number, because 998150855 - 2¹² = 998146759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9690734 + ... + 9690836.

It is an arithmetic number, because the mean of its divisors is an integer number (21670740).

Almost surely, 2^998150855 is an apocalyptic number.

998150855 is a deficient number, since it is larger than the sum of its proper divisors (388776505).

998150855 is a wasteful number, since it uses less digits than its factorization.

998150855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its (nonzero) digits is 648000, while the sum is 50.

The square root of 998150855 is about 31593.5255234360. The cubic root of 998150855 is about 999.3832380162.

The spelling of 998150855 in words is "nine hundred ninety-eight million, one hundred fifty thousand, eight hundred fifty-five".