99942984 has 56 divisors (see below), whose sum is σ = 280977510. Its totient is φ = 33312384.

The previous prime is 99942923. The next prime is 99943013. The reversal of 99942984 is 48924999.

It can be written as a sum of positive squares in only one way, i.e., 99800100 + 142884 = 9990^2 + 378^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is a self number, because there is not a number n which added to its sum of digits gives 99942984.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2737 + ... + 14400.

Almost surely, 2^99942984 is an apocalyptic number.

It is an amenable number.

99942984 is an abundant number, since it is smaller than the sum of its proper divisors (181034526).

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

99942984 is a wasteful number, since it uses less digits than its factorization.

99942984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17161 (or 17142 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 99942984 is about 9997.1487935311. The cubic root of 99942984 is about 464.0706516474.

The spelling of 99942984 in words is "ninety-nine million, nine hundred forty-two thousand, nine hundred eighty-four".