87533828 has 6 divisors (see below), whose sum is σ = 153184206. Its totient is φ = 43766912.

The previous prime is 87533827. The next prime is 87533857. The reversal of 87533828 is 82833578.

It can be written as a sum of positive squares in only one way, i.e., 64513024 + 23020804 = 8032^2 + 4798^2 .

It is not an unprimeable number, because it can be changed into a prime (87533827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10941725 + ... + 10941732.

It is an arithmetic number, because the mean of its divisors is an integer number (25530701).

Almost surely, 2^87533828 is an apocalyptic number.

It is an amenable number.

87533828 is a deficient number, since it is larger than the sum of its proper divisors (65650378).

87533828 is a wasteful number, since it uses less digits than its factorization.

87533828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21883461 (or 21883459 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 87533828 is about 9355.9514748635. The cubic root of 87533828 is about 444.0092049603.

The spelling of 87533828 in words is "eighty-seven million, five hundred thirty-three thousand, eight hundred twenty-eight".