99389472 has 192 divisors, whose sum is σ = 332365824. Its totient is φ = 25297920.

The previous prime is 99389461. The next prime is 99389473. The reversal of 99389472 is 27498399.

It is not an unprimeable number, because it can be changed into a prime (99389473) 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, 270633 + ... + 270999.

It is an arithmetic number, because the mean of its divisors is an integer number (1731072).

Almost surely, 2^99389472 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 99389472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166182912).

99389472 is an abundant number, since it is smaller than the sum of its proper divisors (232976352).

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

99389472 is a wasteful number, since it uses less digits than its factorization.

99389472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 423 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 99389472 is about 9969.4268641683. The cubic root of 99389472 is about 463.2123478025.

The spelling of 99389472 in words is "ninety-nine million, three hundred eighty-nine thousand, four hundred seventy-two".