99705606 has 96 divisors (see below), whose sum is σ = 269422848. Its totient is φ = 23886720.

The previous prime is 99705589. The next prime is 99705607. The reversal of 99705606 is 60650799.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99705607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77440 + ... + 78716.

It is an arithmetic number, because the mean of its divisors is an integer number (2806488).

Almost surely, 2^99705606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99705606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134711424).

99705606 is an abundant number, since it is smaller than the sum of its proper divisors (169717242).

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

99705606 is a wasteful number, since it uses less digits than its factorization.

99705606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 99705606 is about 9985.2694505456. The cubic root of 99705606 is about 463.7029503540.

It can be divided in two parts, 9970 and 5606, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 99705606 in words is "ninety-nine million, seven hundred five thousand, six hundred six".