998098562 has 4 divisors (see below), whose sum is σ = 1497147846. Its totient is φ = 499049280.

The previous prime is 998098553. The next prime is 998098571. The reversal of 998098562 is 265890899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 265890899 = 2819 ⋅94321.

It is an interprime number because it is at equal distance from previous prime (998098553) and next prime (998098571).

It can be written as a sum of positive squares in only one way, i.e., 692163481 + 305935081 = 26309^2 + 17491^2 .

It is a junction number, because it is equal to n+sod(n) for n = 998098498 and 998098507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249524639 + ... + 249524642.

Almost surely, 2^998098562 is an apocalyptic number.

998098562 is a deficient number, since it is larger than the sum of its proper divisors (499049284).

998098562 is a wasteful number, since it uses less digits than its factorization.

998098562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499049283.

The product of its (nonzero) digits is 2799360, while the sum is 56.

The square root of 998098562 is about 31592.6979221465. The cubic root of 998098562 is about 999.3657851899.

The spelling of 998098562 in words is "nine hundred ninety-eight million, ninety-eight thousand, five hundred sixty-two".