998817274 has 96 divisors (see below), whose sum is σ = 1985679360. Its totient is φ = 372734208.

The previous prime is 998817203. The next prime is 998817299. The reversal of 998817274 is 472718899.

It is a happy 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 47 ways as a sum of consecutive naturals, for example, 2607687 + ... + 2608069.

It is an arithmetic number, because the mean of its divisors is an integer number (20684160).

Almost surely, 2^998817274 is an apocalyptic number.

998817274 is a deficient number, since it is larger than the sum of its proper divisors (986862086).

998817274 is a wasteful number, since it uses less digits than its factorization.

998817274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 517 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The square root of 998817274 is about 31604.0705289683. The cubic root of 998817274 is about 999.6056024710.

The spelling of 998817274 in words is "nine hundred ninety-eight million, eight hundred seventeen thousand, two hundred seventy-four".