87528836 has 6 divisors (see below), whose sum is σ = 153175470. Its totient is φ = 43764416.

The previous prime is 87528827. The next prime is 87528893. The reversal of 87528836 is 63882578.

It can be written as a sum of positive squares in only one way, i.e., 74926336 + 12602500 = 8656^2 + 3550^2 .

It is a super-2 number, since 2×87528836² = 15322594263029792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10941101 + ... + 10941108.

It is an arithmetic number, because the mean of its divisors is an integer number (25529245).

Almost surely, 2^87528836 is an apocalyptic number.

It is an amenable number.

87528836 is a deficient number, since it is larger than the sum of its proper divisors (65646634).

87528836 is a wasteful number, since it uses less digits than its factorization.

87528836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21882213 (or 21882211 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 87528836 is about 9355.6846890006. The cubic root of 87528836 is about 444.0007642765. Note that the first 3 decimals are identical.

The spelling of 87528836 in words is "eighty-seven million, five hundred twenty-eight thousand, eight hundred thirty-six".