28173058 has 16 divisors (see below), whose sum is σ = 43574904. Its totient is φ = 13651200.

The previous prime is 28173053. The next prime is 28173071. The reversal of 28173058 is 85037182.

It can be written as a sum of positive squares in 4 ways, for example, as 13373649 + 14799409 = 3657^2 + 3847^2 .

It is a super-3 number, since 3×28173058³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28173053) 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, 22858 + ... + 24058.

Almost surely, 2^28173058 is an apocalyptic number.

28173058 is a deficient number, since it is larger than the sum of its proper divisors (15401846).

28173058 is a wasteful number, since it uses less digits than its factorization.

28173058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 28173058 is about 5307.8298767010. The cubic root of 28173058 is about 304.2832151180.

The spelling of 28173058 in words is "twenty-eight million, one hundred seventy-three thousand, fifty-eight".