998885870 has 32 divisors (see below), whose sum is σ = 1846877760. Its totient is φ = 388744960.

The previous prime is 998885869. The next prime is 998885887. The reversal of 998885870 is 78588899.

It is a super-3 number, since 3×998885870³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156359 + ... + 162621.

It is an arithmetic number, because the mean of its divisors is an integer number (57714930).

Almost surely, 2^998885870 is an apocalyptic number.

998885870 is a deficient number, since it is larger than the sum of its proper divisors (847991890).

998885870 is a wasteful number, since it uses less digits than its factorization.

998885870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700.

The product of its (nonzero) digits is 11612160, while the sum is 62.

The square root of 998885870 is about 31605.1557502886. The cubic root of 998885870 is about 999.6284853273.

The spelling of 998885870 in words is "nine hundred ninety-eight million, eight hundred eighty-five thousand, eight hundred seventy".