98611818 has 8 divisors (see below), whose sum is σ = 197223648. Its totient is φ = 32870604.

The previous prime is 98611813. The next prime is 98611819. The reversal of 98611818 is 81811689.

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

98611818 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 98611818.

It is not an unprimeable number, because it can be changed into a prime (98611811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8217646 + ... + 8217657.

It is an arithmetic number, because the mean of its divisors is an integer number (24652956).

Almost surely, 2^98611818 is an apocalyptic number.

98611818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98611818 is a wasteful number, since it uses less digits than its factorization.

98611818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16435308.

The product of its digits is 27648, while the sum is 42.

The square root of 98611818 is about 9930.3483322590. The cubic root of 98611818 is about 462.0010775635.

The spelling of 98611818 in words is "ninety-eight million, six hundred eleven thousand, eight hundred eighteen".