87480128 has 14 divisors (see below), whose sum is σ = 173593506. Its totient is φ = 43740032.

The previous prime is 87480121. The next prime is 87480139. The reversal of 87480128 is 82108478.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 78287104 + 9193024 = 8848^2 + 3032^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87480091 and 87480100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87480121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683375 + ... + 683502.

Almost surely, 2^87480128 is an apocalyptic number.

It is an amenable number.

87480128 is a deficient number, since it is larger than the sum of its proper divisors (86113378).

87480128 is a wasteful number, since it uses less digits than its factorization.

87480128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366889 (or 1366879 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 87480128 is about 9353.0812035393. The cubic root of 87480128 is about 443.9183898918.

The spelling of 87480128 in words is "eighty-seven million, four hundred eighty thousand, one hundred twenty-eight".