87630028 has 12 divisors (see below), whose sum is σ = 153462400. Its totient is φ = 43783632.

The previous prime is 87629999. The next prime is 87630047. The reversal of 87630028 is 82003678.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 87629975 and 87630002.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 876 + ... + 13267.

Almost surely, 2^87630028 is an apocalyptic number.

It is an amenable number.

87630028 is a deficient number, since it is larger than the sum of its proper divisors (65832372).

87630028 is a wasteful number, since it uses less digits than its factorization.

87630028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15696 (or 15694 counting only the distinct ones).

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

The square root of 87630028 is about 9361.0911757124. The cubic root of 87630028 is about 444.1718013284.

The spelling of 87630028 in words is "eighty-seven million, six hundred thirty thousand, twenty-eight".