87807752 has 12 divisors (see below), whose sum is σ = 164689245. Its totient is φ = 43890624.

The previous prime is 87807751. The next prime is 87807757. The reversal of 87807752 is 25770878.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 67141636 + 20666116 = 8194^2 + 4546^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6626.

It is a super-3 number, since 3×87807752³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87807751) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24848 + ... + 28160.

Almost surely, 2^87807752 is an apocalyptic number.

It is an amenable number.

87807752 is a deficient number, since it is larger than the sum of its proper divisors (76881493).

87807752 is an frugal number, since it uses more digits than its factorization.

87807752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6632 (or 3315 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 44.

The square root of 87807752 is about 9370.5790642841. The cubic root of 87807752 is about 444.4718761031.

The spelling of 87807752 in words is "eighty-seven million, eight hundred seven thousand, seven hundred fifty-two".