28590173 has 8 divisors (see below), whose sum is σ = 30280128. Its totient is φ = 26937504.

The previous prime is 28590139. The next prime is 28590181. The reversal of 28590173 is 37109582.

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

It is a cyclic number.

It is not a de Polignac number, because 28590173 - 2⁸ = 28589917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28590103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7736 + ... + 10817.

It is an arithmetic number, because the mean of its divisors is an integer number (3785016).

Almost surely, 2^28590173 is an apocalyptic number.

28590173 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28590173 is a deficient number, since it is larger than the sum of its proper divisors (1689955).

28590173 is a wasteful number, since it uses less digits than its factorization.

28590173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18643.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 28590173 is about 5346.9779315049. The cubic root of 28590173 is about 305.7775484645. Note that the first 3 decimals are identical.

The spelling of 28590173 in words is "twenty-eight million, five hundred ninety thousand, one hundred seventy-three".