98651618 has 16 divisors (see below), whose sum is σ = 159767160. Its totient is φ = 45415296.

The previous prime is 98651551. The next prime is 98651621. The reversal of 98651618 is 81615689.

It can be written as a sum of positive squares in 4 ways, for example, as 95785369 + 2866249 = 9787^2 + 1693^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5996 + ... + 15272.

Almost surely, 2^98651618 is an apocalyptic number.

98651618 is a deficient number, since it is larger than the sum of its proper divisors (61115542).

98651618 is a wasteful number, since it uses less digits than its factorization.

98651618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9701.

The product of its digits is 103680, while the sum is 44.

The square root of 98651618 is about 9932.3520880001. The cubic root of 98651618 is about 462.0632241704.

The spelling of 98651618 in words is "ninety-eight million, six hundred fifty-one thousand, six hundred eighteen".