99867504 has 80 divisors (see below), whose sum is σ = 285410304. Its totient is φ = 29836800.

The previous prime is 99867499. The next prime is 99867511. The reversal of 99867504 is 40576899.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37249 + ... + 39839.

Almost surely, 2^99867504 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 99867504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142705152).

99867504 is an abundant number, since it is smaller than the sum of its proper divisors (185542800).

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

99867504 is a wasteful number, since it uses less digits than its factorization.

99867504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686 (or 2680 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 99867504 is about 9993.3730041463. The cubic root of 99867504 is about 463.9537954388.

Subtracting from 99867504 its reverse (40576899), we obtain a triangular number (59290605 = T₁₀₈₈₉).

The spelling of 99867504 in words is "ninety-nine million, eight hundred sixty-seven thousand, five hundred four".