87499008 has 72 divisors (see below), whose sum is σ = 258770400. Its totient is φ = 29164032.

The previous prime is 87499001. The next prime is 87499021. The reversal of 87499008 is 80099478.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (87499001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583 + ... + 13241.

Almost surely, 2^87499008 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 87499008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129385200).

87499008 is an abundant number, since it is smaller than the sum of its proper divisors (171271392).

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

87499008 is a wasteful number, since it uses less digits than its factorization.

87499008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12684 (or 12664 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 87499008 is about 9354.0904421542. The cubic root of 87499008 is about 443.9503231492.

The spelling of 87499008 in words is "eighty-seven million, four hundred ninety-nine thousand, eight".