28680170 has 8 divisors (see below), whose sum is σ = 51624324. Its totient is φ = 11472064.

The previous prime is 28680163. The next prime is 28680181. The reversal of 28680170 is 7108682.

It can be written as a sum of positive squares in 2 ways, for example, as 22972849 + 5707321 = 4793^2 + 2389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×28680170³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433999 + ... + 1434018.

Almost surely, 2^28680170 is an apocalyptic number.

28680170 is a deficient number, since it is larger than the sum of its proper divisors (22944154).

28680170 is a wasteful number, since it uses less digits than its factorization.

28680170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868024.

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

The square root of 28680170 is about 5355.3870074907. The cubic root of 28680170 is about 306.0980576282.

The spelling of 28680170 in words is "twenty-eight million, six hundred eighty thousand, one hundred seventy".