98388090 has 24 divisors (see below), whose sum is σ = 255809268. Its totient is φ = 26236800.

The previous prime is 98388077. The next prime is 98388109. The reversal of 98388090 is 9088389.

It can be written as a sum of positive squares in 2 ways, for example, as 98188281 + 199809 = 9909^2 + 447^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546511 + ... + 546690.

Almost surely, 2^98388090 is an apocalyptic number.

98388090 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

98388090 is an abundant number, since it is smaller than the sum of its proper divisors (157421178).

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

98388090 is a wasteful number, since it uses less digits than its factorization.

98388090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093214 (or 1093211 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 98388090 is about 9919.0770740024. The cubic root of 98388090 is about 461.6514208771.

The spelling of 98388090 in words is "ninety-eight million, three hundred eighty-eight thousand, ninety".