98790780 has 144 divisors (see below), whose sum is σ = 314100864. Its totient is φ = 22995840.

The previous prime is 98790779. The next prime is 98790787. The reversal of 98790780 is 8709789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98790787) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1674391 + ... + 1674449.

It is an arithmetic number, because the mean of its divisors is an integer number (2181256).

Almost surely, 2^98790780 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 98790780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157050432).

98790780 is an abundant number, since it is smaller than the sum of its proper divisors (215310084).

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

98790780 is a wasteful number, since it uses less digits than its factorization.

98790780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 98790780 is about 9939.3551098650. The cubic root of 98790780 is about 462.2803905041.

The spelling of 98790780 in words is "ninety-eight million, seven hundred ninety thousand, seven hundred eighty".