998974834 has 32 divisors (see below), whose sum is σ = 1767064320. Its totient is φ = 417571200.

The previous prime is 998974831. The next prime is 998974841. The reversal of 998974834 is 438479899.

It is not an unprimeable number, because it can be changed into a prime (998974831) 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, 71062 + ... + 83950.

It is an arithmetic number, because the mean of its divisors is an integer number (55220760).

Almost surely, 2^998974834 is an apocalyptic number.

998974834 is a deficient number, since it is larger than the sum of its proper divisors (768089486).

998974834 is a wasteful number, since it uses less digits than its factorization.

998974834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13186.

The product of its digits is 15676416, while the sum is 61.

The square root of 998974834 is about 31606.5631475490. The cubic root of 998974834 is about 999.6581611595.

The spelling of 998974834 in words is "nine hundred ninety-eight million, nine hundred seventy-four thousand, eight hundred thirty-four".