87532272 has 40 divisors (see below), whose sum is σ = 251251280. Its totient is φ = 29177280.

The previous prime is 87532271. The next prime is 87532307. The reversal of 87532272 is 27223578.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87532271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100879 + ... + 101742.

It is an arithmetic number, because the mean of its divisors is an integer number (6281282).

Almost surely, 2^87532272 is an apocalyptic number.

It is an amenable number.

87532272 is an abundant number, since it is smaller than the sum of its proper divisors (163719008).

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

87532272 is a wasteful number, since it uses less digits than its factorization.

87532272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202638 (or 202626 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 87532272 is about 9355.8683188681. The cubic root of 87532272 is about 444.0065740444.

It can be divided in two parts, 8753 and 2272, that added together give a square (11025 = 105²).

The spelling of 87532272 in words is "eighty-seven million, five hundred thirty-two thousand, two hundred seventy-two".