87726224 has 40 divisors (see below), whose sum is σ = 175348152. Its totient is φ = 42490880.

The previous prime is 87726203. The next prime is 87726227. The reversal of 87726224 is 42262778.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 640000 + 87086224 = 800^2 + 9332^2 .

It is not an unprimeable number, because it can be changed into a prime (87726227) 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, 113102 + ... + 113874.

Almost surely, 2^87726224 is an apocalyptic number.

It is an amenable number.

87726224 is a deficient number, since it is larger than the sum of its proper divisors (87621928).

87726224 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (87726223) it forms an eRAP, since the sums of their prime factors are consecutive (994 and 995).

87726224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 989 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 87726224 is about 9366.2278426269. The cubic root of 87726224 is about 444.3342719881.

The spelling of 87726224 in words is "eighty-seven million, seven hundred twenty-six thousand, two hundred twenty-four".