99867328 has 56 divisors (see below), whose sum is σ = 221284800. Its totient is φ = 44325120.

The previous prime is 99867307. The next prime is 99867331. The reversal of 99867328 is 82376899.

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, 28623 + ... + 31921.

Almost surely, 2^99867328 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 99867328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110642400).

99867328 is an abundant number, since it is smaller than the sum of its proper divisors (121417472).

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

99867328 is a wasteful number, since it uses less digits than its factorization.

99867328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365 (or 3355 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The square root of 99867328 is about 9993.3641983068. The cubic root of 99867328 is about 463.9535228913.

The spelling of 99867328 in words is "ninety-nine million, eight hundred sixty-seven thousand, three hundred twenty-eight".