87544812 has 54 divisors (see below), whose sum is σ = 212856588. Its totient is φ = 28003968.

The previous prime is 87544789. The next prime is 87544819. The reversal of 87544812 is 21844578.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87544819) 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 17 ways as a sum of consecutive naturals, for example, 1199208 + ... + 1199280.

Almost surely, 2^87544812 is an apocalyptic number.

It is an amenable number.

87544812 is an abundant number, since it is smaller than the sum of its proper divisors (125311776).

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

87544812 is a wasteful number, since it uses less digits than its factorization.

87544812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 115 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 87544812 is about 9356.5384624871. The cubic root of 87544812 is about 444.0277760401.

The spelling of 87544812 in words is "eighty-seven million, five hundred forty-four thousand, eight hundred twelve".