99997296 has 80 divisors (see below), whose sum is σ = 296409600. Its totient is φ = 28456704.

The previous prime is 99997267. The next prime is 99997357. The reversal of 99997296 is 69279999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120210 + ... + 121038.

It is an arithmetic number, because the mean of its divisors is an integer number (3705120).

Almost surely, 2^99997296 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 99997296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148204800).

99997296 is an abundant number, since it is smaller than the sum of its proper divisors (196412304).

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

99997296 is a wasteful number, since it uses less digits than its factorization.

99997296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1200 counting only the distinct ones).

The product of its digits is 4960116, while the sum is 60.

The square root of 99997296 is about 9999.8647990860. The cubic root of 99997296 is about 464.1546997048.

The spelling of 99997296 in words is "ninety-nine million, nine hundred ninety-seven thousand, two hundred ninety-six".