99727488 has 192 divisors, whose sum is σ = 334152000. Its totient is φ = 27961344.

The previous prime is 99727477. The next prime is 99727489. The reversal of 99727488 is 88472799.

99727488 is a `hidden beast` number, since 99 + 72 + 7 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (99727489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 669238 + ... + 669386.

It is an arithmetic number, because the mean of its divisors is an integer number (1740375).

Almost surely, 2^99727488 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 99727488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167076000).

99727488 is an abundant number, since it is smaller than the sum of its proper divisors (234424512).

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

99727488 is a wasteful number, since it uses less digits than its factorization.

99727488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 244 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 99727488 is about 9986.3651044812. The cubic root of 99727488 is about 463.7368702313.

The spelling of 99727488 in words is "ninety-nine million, seven hundred twenty-seven thousand, four hundred eighty-eight".