99709660 has 12 divisors (see below), whose sum is σ = 209390328. Its totient is φ = 39883856.

The previous prime is 99709657. The next prime is 99709667. The reversal of 99709660 is 6690799.

It is a self number, because there is not a number n which added to its sum of digits gives 99709660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99709667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2492722 + ... + 2492761.

It is an arithmetic number, because the mean of its divisors is an integer number (17449194).

Almost surely, 2^99709660 is an apocalyptic number.

It is an amenable number.

99709660 is an abundant number, since it is smaller than the sum of its proper divisors (109680668).

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

99709660 is a wasteful number, since it uses less digits than its factorization.

99709660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985492 (or 4985490 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 99709660 is about 9985.4724475109. The cubic root of 99709660 is about 463.7092349430.

The spelling of 99709660 in words is "ninety-nine million, seven hundred nine thousand, six hundred sixty".