28067850 has 96 divisors (see below), whose sum is σ = 81959040. Its totient is φ = 7038720.

The previous prime is 28067849. The next prime is 28067887. The reversal of 28067850 is 5876082.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22339 + ... + 23561.

It is an arithmetic number, because the mean of its divisors is an integer number (853740).

Almost surely, 2^28067850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28067850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40979520).

28067850 is an abundant number, since it is smaller than the sum of its proper divisors (53891190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28067850 is a wasteful number, since it uses less digits than its factorization.

28067850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 28067850 is about 5297.9099652599. The cubic root of 28067850 is about 303.9039761936.

The spelling of 28067850 in words is "twenty-eight million, sixty-seven thousand, eight hundred fifty".