87982028 has 6 divisors (see below), whose sum is σ = 153968556. Its totient is φ = 43991012.

The previous prime is 87982019. The next prime is 87982031. The reversal of 87982028 is 82028978.

It is a self number, because there is not a number n which added to its sum of digits gives 87982028.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10997750 + ... + 10997757.

It is an arithmetic number, because the mean of its divisors is an integer number (25661426).

Almost surely, 2^87982028 is an apocalyptic number.

It is an amenable number.

87982028 is a deficient number, since it is larger than the sum of its proper divisors (65986528).

87982028 is a wasteful number, since it uses less digits than its factorization.

87982028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21995511 (or 21995509 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 87982028 is about 9379.8735599154. The cubic root of 87982028 is about 444.7657362264.

The spelling of 87982028 in words is "eighty-seven million, nine hundred eighty-two thousand, twenty-eight".