98855778 has 16 divisors (see below), whose sum is σ = 225956160. Its totient is φ = 28244496.

The previous prime is 98855773. The next prime is 98855831. The reversal of 98855778 is 87755889.

It is not an unprimeable number, because it can be changed into a prime (98855773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176813 + ... + 1176896.

It is an arithmetic number, because the mean of its divisors is an integer number (14122260).

Almost surely, 2^98855778 is an apocalyptic number.

98855778 is an abundant number, since it is smaller than the sum of its proper divisors (127100382).

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

98855778 is a wasteful number, since it uses less digits than its factorization.

98855778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353721.

The product of its digits is 5644800, while the sum is 57.

The square root of 98855778 is about 9942.6243014609. The cubic root of 98855778 is about 462.3817518980.

The spelling of 98855778 in words is "ninety-eight million, eight hundred fifty-five thousand, seven hundred seventy-eight".