8500028 has 12 divisors (see below), whose sum is σ = 14984592. Its totient is φ = 4218720.

The previous prime is 8500027. The next prime is 8500057. The reversal of 8500028 is 8200058.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8499976 and 8500012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500021) 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 3 ways as a sum of consecutive naturals, for example, 7208 + ... + 8303.

It is an arithmetic number, because the mean of its divisors is an integer number (1248716).

Almost surely, 2^8500028 is an apocalyptic number.

It is an amenable number.

8500028 is a deficient number, since it is larger than the sum of its proper divisors (6484564).

8500028 is a wasteful number, since it uses less digits than its factorization.

8500028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15652 (or 15650 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 8500028 is about 2915.4807493791. The cubic root of 8500028 is about 204.0829791865.

The spelling of 8500028 in words is "eight million, five hundred thousand, twenty-eight".