87267144 has 32 divisors (see below), whose sum is σ = 220176000. Its totient is φ = 28821312.

The previous prime is 87267143. The next prime is 87267151. The reversal of 87267144 is 44176278.

It is not an unprimeable number, because it can be changed into a prime (87267143) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 14064 + ... + 19295.

It is an arithmetic number, because the mean of its divisors is an integer number (6880500).

Almost surely, 2^87267144 is an apocalyptic number.

It is an amenable number.

87267144 is an abundant number, since it is smaller than the sum of its proper divisors (132908856).

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

87267144 is a wasteful number, since it uses less digits than its factorization.

87267144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33477 (or 33473 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 87267144 is about 9341.6884983390. The cubic root of 87267144 is about 443.5578342979.

The spelling of 87267144 in words is "eighty-seven million, two hundred sixty-seven thousand, one hundred forty-four".