998834135 has 16 divisors (see below), whose sum is σ = 1294085856. Its totient is φ = 735723648.

The previous prime is 998834119. The next prime is 998834183. The reversal of 998834135 is 531438899.

It is a cyclic number.

It is not a de Polignac number, because 998834135 - 2⁴ = 998834119 is a prime.

It is a Duffinian number.

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, 6452 + ... + 45158.

It is an arithmetic number, because the mean of its divisors is an integer number (80880366).

Almost surely, 2^998834135 is an apocalyptic number.

998834135 is the 25805-th pentagonal number.

998834135 is a deficient number, since it is larger than the sum of its proper divisors (295251721).

998834135 is a wasteful number, since it uses less digits than its factorization.

998834135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39122.

The product of its digits is 933120, while the sum is 50.

The square root of 998834135 is about 31604.3372814555. The cubic root of 998834135 is about 999.6112272086.

The spelling of 998834135 in words is "nine hundred ninety-eight million, eight hundred thirty-four thousand, one hundred thirty-five".