98018505 has 40 divisors (see below), whose sum is σ = 189233352. Its totient is φ = 48252672.

The previous prime is 98018467. The next prime is 98018507. The reversal of 98018505 is 50581089.

It can be written as a sum of positive squares in 4 ways, for example, as 17665209 + 80353296 = 4203^2 + 8964^2 .

It is not a de Polignac number, because 98018505 - 2⁷ = 98018377 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 98018505.

It is not an unprimeable number, because it can be changed into a prime (98018507) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4044 + ... + 14573.

Almost surely, 2^98018505 is an apocalyptic number.

It is an amenable number.

98018505 is a deficient number, since it is larger than the sum of its proper divisors (91214847).

98018505 is a wasteful number, since it uses less digits than its factorization.

98018505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18647 (or 18638 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 98018505 is about 9900.4295361363. The cubic root of 98018505 is about 461.0726464692.

The spelling of 98018505 in words is "ninety-eight million, eighteen thousand, five hundred five".