98987830 has 8 divisors (see below), whose sum is σ = 178178112. Its totient is φ = 39595128.

The previous prime is 98987827. The next prime is 98987831. The reversal of 98987830 is 3878989.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98987831) by changing a digit.

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, 4949382 + ... + 4949401.

It is an arithmetic number, because the mean of its divisors is an integer number (22272264).

Almost surely, 2^98987830 is an apocalyptic number.

98987830 is a deficient number, since it is larger than the sum of its proper divisors (79190282).

98987830 is a wasteful number, since it uses less digits than its factorization.

98987830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9898790.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 98987830 is about 9949.2627867596. The cubic root of 98987830 is about 462.5875441781.

The spelling of 98987830 in words is "ninety-eight million, nine hundred eighty-seven thousand, eight hundred thirty".