99649760 has 96 divisors (see below), whose sum is σ = 271035072. Its totient is φ = 33914880.

The previous prime is 99649727. The next prime is 99649763. The reversal of 99649760 is 6794699.

It is a junction number, because it is equal to n+sod(n) for n = 99649699 and 99649708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99649763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215930 + ... + 216390.

It is an arithmetic number, because the mean of its divisors is an integer number (2823282).

Almost surely, 2^99649760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99649760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135517536).

99649760 is an abundant number, since it is smaller than the sum of its proper divisors (171385312).

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

99649760 is a wasteful number, since it uses less digits than its factorization.

99649760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 99649760 is about 9982.4726395818. The cubic root of 99649760 is about 463.6163594645.

The spelling of 99649760 in words is "ninety-nine million, six hundred forty-nine thousand, seven hundred sixty".