87267544 has 48 divisors (see below), whose sum is σ = 202515120. Its totient is φ = 34519680.

The previous prime is 87267517. The next prime is 87267547. The reversal of 87267544 is 44576278.

It is a self number, because there is not a number n which added to its sum of digits gives 87267544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87267547) 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 11 ways as a sum of consecutive naturals, for example, 4854 + ... + 14074.

It is an arithmetic number, because the mean of its divisors is an integer number (4219065).

Almost surely, 2^87267544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87267544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101257560).

87267544 is an abundant number, since it is smaller than the sum of its proper divisors (115247576).

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

87267544 is a wasteful number, since it uses less digits than its factorization.

87267544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9260 (or 9243 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The square root of 87267544 is about 9341.7099077203. The cubic root of 87267544 is about 443.5585119980.

The spelling of 87267544 in words is "eighty-seven million, two hundred sixty-seven thousand, five hundred forty-four".