99873660 has 24 divisors (see below), whose sum is σ = 279646416. Its totient is φ = 26632960.

The previous prime is 99873629. The next prime is 99873667. The reversal of 99873660 is 6637899.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99873667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832221 + ... + 832340.

It is an arithmetic number, because the mean of its divisors is an integer number (11651934).

Almost surely, 2^99873660 is an apocalyptic number.

It is an amenable number.

99873660 is an abundant number, since it is smaller than the sum of its proper divisors (179772756).

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

99873660 is a wasteful number, since it uses less digits than its factorization.

99873660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664573 (or 1664571 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 99873660 is about 9993.6810035142. The cubic root of 99873660 is about 463.9633282056.

The spelling of 99873660 in words is "ninety-nine million, eight hundred seventy-three thousand, six hundred sixty".