87396224 has 32 divisors (see below), whose sum is σ = 175929600. Its totient is φ = 43241472.

The previous prime is 87396163. The next prime is 87396229. The reversal of 87396224 is 42269378.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87396229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8897 + ... + 15935.

It is an arithmetic number, because the mean of its divisors is an integer number (5497800).

Almost surely, 2^87396224 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 87396224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87964800).

87396224 is an abundant number, since it is smaller than the sum of its proper divisors (88533376).

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

87396224 is an equidigital number, since it uses as much as digits as its factorization.

87396224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7150 (or 7138 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 87396224 is about 9348.5947607114. The cubic root of 87396224 is about 443.7764207241.

The spelling of 87396224 in words is "eighty-seven million, three hundred ninety-six thousand, two hundred twenty-four".