98721580 has 12 divisors (see below), whose sum is σ = 207315360. Its totient is φ = 39488624.

The previous prime is 98721547. The next prime is 98721599. The reversal of 98721580 is 8512789.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2468020 + ... + 2468059.

It is an arithmetic number, because the mean of its divisors is an integer number (17276280).

Almost surely, 2^98721580 is an apocalyptic number.

It is an amenable number.

98721580 is an abundant number, since it is smaller than the sum of its proper divisors (108593780).

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

98721580 is a wasteful number, since it uses less digits than its factorization.

98721580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936088 (or 4936086 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 98721580 is about 9935.8733888874. The cubic root of 98721580 is about 462.1724274086.

The spelling of 98721580 in words is "ninety-eight million, seven hundred twenty-one thousand, five hundred eighty".