98791380 has 96 divisors (see below), whose sum is σ = 310262400. Its totient is φ = 26095104.

The previous prime is 98791379. The next prime is 98791447. The reversal of 98791380 is 8319789.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60211 + ... + 61829.

It is an arithmetic number, because the mean of its divisors is an integer number (3231900).

Almost surely, 2^98791380 is an apocalyptic number.

98791380 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98791380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155131200).

98791380 is an abundant number, since it is smaller than the sum of its proper divisors (211471020).

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

98791380 is a wasteful number, since it uses less digits than its factorization.

98791380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750 (or 1742 counting only the distinct ones).

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

The square root of 98791380 is about 9939.3852928639. The cubic root of 98791380 is about 462.2813263798.

The spelling of 98791380 in words is "ninety-eight million, seven hundred ninety-one thousand, three hundred eighty".