87668224 has 80 divisors (see below), whose sum is σ = 203978016. Its totient is φ = 36864000.

The previous prime is 87668221. The next prime is 87668233. The reversal of 87668224 is 42286678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87668221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 218424 + ... + 218824.

Almost surely, 2^87668224 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 87668224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101989008).

87668224 is an abundant number, since it is smaller than the sum of its proper divisors (116309792).

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

87668224 is an equidigital number, since it uses as much as digits as its factorization.

87668224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 471 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 87668224 is about 9363.1311002250. The cubic root of 87668224 is about 444.2363268574.

The spelling of 87668224 in words is "eighty-seven million, six hundred sixty-eight thousand, two hundred twenty-four".