99387936 has 144 divisors (see below), whose sum is σ = 305454240. Its totient is φ = 30551040.

The previous prime is 99387931. The next prime is 99387941. The reversal of 99387936 is 63978399.

It is an interprime number because it is at equal distance from previous prime (99387931) and next prime (99387941).

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (99387931) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 224131 + ... + 224573.

It is an arithmetic number, because the mean of its divisors is an integer number (2121210).

Almost surely, 2^99387936 is an apocalyptic number.

99387936 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99387936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152727120).

99387936 is an abundant number, since it is smaller than the sum of its proper divisors (206066304).

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

99387936 is a wasteful number, since it uses less digits than its factorization.

99387936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 508 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 99387936 is about 9969.3498283489. The cubic root of 99387936 is about 463.2099615744.

The spelling of 99387936 in words is "ninety-nine million, three hundred eighty-seven thousand, nine hundred thirty-six".