98818890 has 32 divisors (see below), whose sum is σ = 237828096. Its totient is φ = 26278080.

The previous prime is 98818883. The next prime is 98818891. The reversal of 98818890 is 9881889.

It is not an unprimeable number, because it can be changed into a prime (98818891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6775 + ... + 15605.

It is an arithmetic number, because the mean of its divisors is an integer number (7432128).

Almost surely, 2^98818890 is an apocalyptic number.

98818890 is an abundant number, since it is smaller than the sum of its proper divisors (139009206).

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

98818890 is a wasteful number, since it uses less digits than its factorization.

98818890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9214.

The product of its (nonzero) digits is 331776, while the sum is 51.

The square root of 98818890 is about 9940.7690849350. The cubic root of 98818890 is about 462.3242322116.

The spelling of 98818890 in words is "ninety-eight million, eight hundred eighteen thousand, eight hundred ninety".