87030628 has 6 divisors (see below), whose sum is σ = 152303606. Its totient is φ = 43515312.

The previous prime is 87030617. The next prime is 87030661. The reversal of 87030628 is 82603078.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 87011584 + 19044 = 9328^2 + 138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87030593 and 87030602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10878825 + ... + 10878832.

Almost surely, 2^87030628 is an apocalyptic number.

It is an amenable number.

87030628 is a deficient number, since it is larger than the sum of its proper divisors (65272978).

87030628 is a wasteful number, since it uses less digits than its factorization.

87030628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21757661 (or 21757659 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 87030628 is about 9329.0207417499. The cubic root of 87030628 is about 443.1567538183.

The spelling of 87030628 in words is "eighty-seven million, thirty thousand, six hundred twenty-eight".