998956011 has 16 divisors (see below), whose sum is σ = 1379577600. Its totient is φ = 642209568.

The previous prime is 998956009. The next prime is 998956039. The reversal of 998956011 is 110659899.

It is not a de Polignac number, because 998956011 - 2¹ = 998956009 is a prime.

It is a super-2 number, since 2×998956011² = 1995826223826064242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (998956111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68050 + ... + 81416.

It is an arithmetic number, because the mean of its divisors is an integer number (86223600).

Almost surely, 2^998956011 is an apocalyptic number.

998956011 is a deficient number, since it is larger than the sum of its proper divisors (380621589).

998956011 is a wasteful number, since it uses less digits than its factorization.

998956011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14258.

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 998956011 is about 31606.2653757131. The cubic root of 998956011 is about 999.6518824949.

The spelling of 998956011 in words is "nine hundred ninety-eight million, nine hundred fifty-six thousand, eleven".