98780730 has 16 divisors (see below), whose sum is σ = 237073824. Its totient is φ = 26341520.

The previous prime is 98780719. The next prime is 98780743. The reversal of 98780730 is 3708789.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon 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, 1646316 + ... + 1646375.

It is an arithmetic number, because the mean of its divisors is an integer number (14817114).

Almost surely, 2^98780730 is an apocalyptic number.

98780730 is an abundant number, since it is smaller than the sum of its proper divisors (138293094).

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

98780730 is a wasteful number, since it uses less digits than its factorization.

98780730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3292701.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 98780730 is about 9938.8495310071. The cubic root of 98780730 is about 462.2647140227.

The spelling of 98780730 in words is "ninety-eight million, seven hundred eighty thousand, seven hundred thirty".