99647296 has 56 divisors (see below), whose sum is σ = 226990656. Its totient is φ = 42516480.

The previous prime is 99647243. The next prime is 99647309. The reversal of 99647296 is 69274699.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×99647296² = 19859167200223232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155136 + ... + 155776.

Almost surely, 2^99647296 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 99647296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113495328).

99647296 is an abundant number, since it is smaller than the sum of its proper divisors (127343360).

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

99647296 is a wasteful number, since it uses less digits than its factorization.

99647296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 997 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 52.

The square root of 99647296 is about 9982.3492225027. The cubic root of 99647296 is about 463.6125382139.

The spelling of 99647296 in words is "ninety-nine million, six hundred forty-seven thousand, two hundred ninety-six".