98109378 has 36 divisors (see below), whose sum is σ = 220187058. Its totient is φ = 31570560.

The previous prime is 98109371. The next prime is 98109391. The reversal of 98109378 is 87390189.

It can be written as a sum of positive squares in 3 ways, for example, as 97357689 + 751689 = 9867^2 + 867^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98109371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11898 + ... + 18378.

Almost surely, 2^98109378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98109378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110093529).

98109378 is an abundant number, since it is smaller than the sum of its proper divisors (122077680).

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

98109378 is a wasteful number, since it uses less digits than its factorization.

98109378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6547 (or 6515 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 98109378 is about 9905.0178192672. The cubic root of 98109378 is about 461.2150893445.

The spelling of 98109378 in words is "ninety-eight million, one hundred nine thousand, three hundred seventy-eight".