998150856 has 32 divisors (see below), whose sum is σ = 2500748640. Its totient is φ = 332000768.

The previous prime is 998150843. The next prime is 998150861. The reversal of 998150856 is 658051899.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 998150799 and 998150808.

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, 33321 + ... + 55736.

It is an arithmetic number, because the mean of its divisors is an integer number (78148395).

Almost surely, 2^998150856 is an apocalyptic number.

998150856 is the 19982-nd centered pentagonal number.

It is an amenable number.

998150856 is an abundant number, since it is smaller than the sum of its proper divisors (1502597784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998150856 is a wasteful number, since it uses less digits than its factorization.

998150856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89533 (or 89529 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 51.

The square root of 998150856 is about 31593.5255392620. The cubic root of 998150856 is about 999.3832383499.

The spelling of 998150856 in words is "nine hundred ninety-eight million, one hundred fifty thousand, eight hundred fifty-six".