98217818 has 8 divisors (see below), whose sum is σ = 147875220. Its totient is φ = 48926080.

The previous prime is 98217793. The next prime is 98217839. The reversal of 98217818 is 81871289.

It can be written as a sum of positive squares in 2 ways, for example, as 98148649 + 69169 = 9907^2 + 263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×98217818² = 19293479545362248, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 90743 + ... + 91818.

Almost surely, 2^98217818 is an apocalyptic number.

98217818 is a deficient number, since it is larger than the sum of its proper divisors (49657402).

98217818 is a wasteful number, since it uses less digits than its factorization.

98217818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182832.

The product of its digits is 64512, while the sum is 44.

The square root of 98217818 is about 9910.4903006864. The cubic root of 98217818 is about 461.3849533261.

The spelling of 98217818 in words is "ninety-eight million, two hundred seventeen thousand, eight hundred eighteen".