99897696 has 36 divisors (see below), whose sum is σ = 284084892. Its totient is φ = 33299136.

The previous prime is 99897691. The next prime is 99897713. The reversal of 99897696 is 69679899.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×99897696² = 19959099332216832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99897691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173146 + ... + 173721.

It is an arithmetic number, because the mean of its divisors is an integer number (7891247).

Almost surely, 2^99897696 is an apocalyptic number.

99897696 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

99897696 is an abundant number, since it is smaller than the sum of its proper divisors (184187196).

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

99897696 is a wasteful number, since it uses less digits than its factorization.

99897696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346883 (or 346872 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 63.

The square root of 99897696 is about 9994.8834910668. The cubic root of 99897696 is about 464.0005449855. Note that the first 3 decimals are identical.

The spelling of 99897696 in words is "ninety-nine million, eight hundred ninety-seven thousand, six hundred ninety-six".