98780020 has 48 divisors (see below), whose sum is σ = 212486400. Its totient is φ = 38563200.

The previous prime is 98779951. The next prime is 98780027. The reversal of 98780020 is 2008789.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98780027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159271 + ... + 159889.

It is an arithmetic number, because the mean of its divisors is an integer number (4426800).

Almost surely, 2^98780020 is an apocalyptic number.

It is an amenable number.

98780020 is an abundant number, since it is smaller than the sum of its proper divisors (113706380).

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

98780020 is a wasteful number, since it uses less digits than its factorization.

98780020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 98780020 is about 9938.8138125231. The cubic root of 98780020 is about 462.2636064897.

The spelling of 98780020 in words is "ninety-eight million, seven hundred eighty thousand, twenty".