87508733 has 8 divisors (see below), whose sum is σ = 94316376. Its totient is φ = 80712000.

The previous prime is 87508717. The next prime is 87508769. The reversal of 87508733 is 33780578.

It can be written as a sum of positive squares in 4 ways, for example, as 702244 + 86806489 = 838^2 + 9317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87508733 - 2⁴ = 87508717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87508703) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22943 + ... + 26483.

It is an arithmetic number, because the mean of its divisors is an integer number (11789547).

Almost surely, 2^87508733 is an apocalyptic number.

It is an amenable number.

87508733 is a deficient number, since it is larger than the sum of its proper divisors (6807643).

87508733 is a wasteful number, since it uses less digits than its factorization.

87508733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 87508733 is about 9354.6102537733. The cubic root of 87508733 is about 443.9667700288.

The spelling of 87508733 in words is "eighty-seven million, five hundred eight thousand, seven hundred thirty-three".