98787798 has 24 divisors (see below), whose sum is σ = 214812936. Its totient is φ = 32810400.

The previous prime is 98787791. The next prime is 98787803. The reversal of 98787798 is 89778789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98787791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4708 + ... + 14823.

It is an arithmetic number, because the mean of its divisors is an integer number (8950539).

Almost surely, 2^98787798 is an apocalyptic number.

98787798 is an abundant number, since it is smaller than the sum of its proper divisors (116025138).

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

98787798 is a wasteful number, since it uses less digits than its factorization.

98787798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19820 (or 19817 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 63.

The square root of 98787798 is about 9939.2050990006. The cubic root of 98787798 is about 462.2757391456.

Subtracting from 98787798 its reverse (89778789), we obtain a palindrome (9009009).

The spelling of 98787798 in words is "ninety-eight million, seven hundred eighty-seven thousand, seven hundred ninety-eight".