99930580 has 24 divisors (see below), whose sum is σ = 210582792. Its totient is φ = 39833472.

The previous prime is 99930569. The next prime is 99930587. The reversal of 99930580 is 8503999.

It can be written as a sum of positive squares in 4 ways, for example, as 25522704 + 74407876 = 5052^2 + 8626^2 .

It is a super-3 number, since 3×99930580³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99930587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2667 + ... + 14386.

It is an arithmetic number, because the mean of its divisors is an integer number (8774283).

Almost surely, 2^99930580 is an apocalyptic number.

It is an amenable number.

99930580 is an abundant number, since it is smaller than the sum of its proper divisors (110652212).

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

99930580 is a wasteful number, since it uses less digits than its factorization.

99930580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17355 (or 17353 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 99930580 is about 9996.5283973988. The cubic root of 99930580 is about 464.0514521322.

The spelling of 99930580 in words is "ninety-nine million, nine hundred thirty thousand, five hundred eighty".