98780660 has 24 divisors (see below), whose sum is σ = 226298016. Its totient is φ = 35920160.

The previous prime is 98780657. The next prime is 98780719. The reversal of 98780660 is 6608789.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224282 + ... + 224721.

It is an arithmetic number, because the mean of its divisors is an integer number (9429084).

Almost surely, 2^98780660 is an apocalyptic number.

It is an amenable number.

98780660 is an abundant number, since it is smaller than the sum of its proper divisors (127517356).

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

98780660 is a wasteful number, since it uses less digits than its factorization.

98780660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449023 (or 449021 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 98780660 is about 9938.8460094721. The cubic root of 98780660 is about 462.2646048295.

The spelling of 98780660 in words is "ninety-eight million, seven hundred eighty thousand, six hundred sixty".