28087016 has 32 divisors (see below), whose sum is σ = 55728000. Its totient is φ = 13234176.

The previous prime is 28087013. The next prime is 28087021. The reversal of 28087016 is 61078082.

It is not an unprimeable number, because it can be changed into a prime (28087013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38705 + ... + 39423.

It is an arithmetic number, because the mean of its divisors is an integer number (1741500).

Almost surely, 2^28087016 is an apocalyptic number.

It is an amenable number.

28087016 is a deficient number, since it is larger than the sum of its proper divisors (27640984).

28087016 is a wasteful number, since it uses less digits than its factorization.

28087016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 28087016 is about 5299.7184830895. The cubic root of 28087016 is about 303.9731335906.

The spelling of 28087016 in words is "twenty-eight million, eighty-seven thousand, sixteen".