87224452 has 36 divisors (see below), whose sum is σ = 180646144. Its totient is φ = 36061920.

The previous prime is 87224447. The next prime is 87224461. The reversal of 87224452 is 25442278.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274998 + ... + 275314.

Almost surely, 2^87224452 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 87224452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90323072).

87224452 is an abundant number, since it is smaller than the sum of its proper divisors (93421692).

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

87224452 is a wasteful number, since it uses less digits than its factorization.

87224452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 357 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 87224452 is about 9339.4031929241. The cubic root of 87224452 is about 443.4854914550.

The spelling of 87224452 in words is "eighty-seven million, two hundred twenty-four thousand, four hundred fifty-two".