99849680 has 160 divisors (see below), whose sum is σ = 280458240. Its totient is φ = 32348160.

The previous prime is 99849661. The next prime is 99849683. The reversal of 99849680 is 8694899.

It is a super-2 number, since 2×99849680² = 19939917192204800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99849683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1263881 + ... + 1263959.

It is an arithmetic number, because the mean of its divisors is an integer number (1752864).

Almost surely, 2^99849680 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 99849680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140229120).

99849680 is an abundant number, since it is smaller than the sum of its proper divisors (180608560).

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

99849680 is a wasteful number, since it uses less digits than its factorization.

99849680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 99849680 is about 9992.4811733623. The cubic root of 99849680 is about 463.9261921840.

The spelling of 99849680 in words is "ninety-nine million, eight hundred forty-nine thousand, six hundred eighty".