28056170 has 16 divisors (see below), whose sum is σ = 50993280. Its totient is φ = 11113104.

The previous prime is 28056143. The next prime is 28056187. The reversal of 28056170 is 7165082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12590 + ... + 14649.

It is an arithmetic number, because the mean of its divisors is an integer number (3187080).

Almost surely, 2^28056170 is an apocalyptic number.

28056170 is a deficient number, since it is larger than the sum of its proper divisors (22937110).

28056170 is a wasteful number, since it uses less digits than its factorization.

28056170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27349.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 28056170 is about 5296.8075290688. The cubic root of 28056170 is about 303.8618153711.

The spelling of 28056170 in words is "twenty-eight million, fifty-six thousand, one hundred seventy".