998022874 has 4 divisors (see below), whose sum is σ = 1497034314. Its totient is φ = 499011436.

The previous prime is 998022871. The next prime is 998022889. The reversal of 998022874 is 478220899.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 727650625 + 270372249 = 26975^2 + 16443^2 .

It is not an unprimeable number, because it can be changed into a prime (998022871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249505717 + ... + 249505720.

Almost surely, 2^998022874 is an apocalyptic number.

998022874 is a deficient number, since it is larger than the sum of its proper divisors (499011440).

998022874 is a wasteful number, since it uses less digits than its factorization.

998022874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499011439.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 998022874 is about 31591.5000276973. The cubic root of 998022874 is about 999.3405231859.

The spelling of 998022874 in words is "nine hundred ninety-eight million, twenty-two thousand, eight hundred seventy-four".