98501780 has 48 divisors (see below), whose sum is σ = 223522320. Its totient is φ = 36246528.

The previous prime is 98501771. The next prime is 98501783. The reversal of 98501780 is 8710589.

It can be written as a sum of positive squares in 8 ways, for example, as 55696 + 98446084 = 236^2 + 9922^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98501783) 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 15 ways as a sum of consecutive naturals, for example, 118406 + ... + 119234.

It is an arithmetic number, because the mean of its divisors is an integer number (4656715).

Almost surely, 2^98501780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98501780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111761160).

98501780 is an abundant number, since it is smaller than the sum of its proper divisors (125020540).

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

98501780 is a wasteful number, since it uses less digits than its factorization.

98501780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 98501780 is about 9924.8062953390. The cubic root of 98501780 is about 461.8291691765.

The spelling of 98501780 in words is "ninety-eight million, five hundred one thousand, seven hundred eighty".