998959355 has 16 divisors (see below), whose sum is σ = 1277070624. Its totient is φ = 747532800.

The previous prime is 998959343. The next prime is 998959369. The reversal of 998959355 is 553959899.

It is not a de Polignac number, because 998959355 - 2¹² = 998955259 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 22196 + ... + 49905.

It is an arithmetic number, because the mean of its divisors is an integer number (79816914).

Almost surely, 2^998959355 is an apocalyptic number.

998959355 is a deficient number, since it is larger than the sum of its proper divisors (278111269).

998959355 is a wasteful number, since it uses less digits than its factorization.

998959355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72286.

The product of its digits is 19683000, while the sum is 62.

The square root of 998959355 is about 31606.3182765725. The cubic root of 998959355 is about 999.6529979368.

The spelling of 998959355 in words is "nine hundred ninety-eight million, nine hundred fifty-nine thousand, three hundred fifty-five".