99961488 has 90 divisors (see below), whose sum is σ = 307551062. Its totient is φ = 30286080.

The previous prime is 99961483. The next prime is 99961553. The reversal of 99961488 is 88416999.

It can be written as a sum of positive squares in only one way, i.e., 54641664 + 45319824 = 7392^2 + 6732^2 .

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 (99961483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14556 + ... + 20292.

Almost surely, 2^99961488 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 99961488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153775531).

99961488 is an abundant number, since it is smaller than the sum of its proper divisors (207589574).

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

99961488 is a wasteful number, since it uses less digits than its factorization.

99961488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773 (or 5753 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The square root of 99961488 is about 9998.0742145675. The cubic root of 99961488 is about 464.0992900874.

The spelling of 99961488 in words is "ninety-nine million, nine hundred sixty-one thousand, four hundred eighty-eight".