28630085 has 8 divisors (see below), whose sum is σ = 37479456. Its totient is φ = 20821840.

The previous prime is 28630061. The next prime is 28630109. The reversal of 28630085 is 58003682.

It is an interprime number because it is at equal distance from previous prime (28630061) and next prime (28630109).

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

It is not a de Polignac number, because 28630085 - 2⁸ = 28629829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260219 + ... + 260328.

It is an arithmetic number, because the mean of its divisors is an integer number (4684932).

Almost surely, 2^28630085 is an apocalyptic number.

It is an amenable number.

28630085 is a deficient number, since it is larger than the sum of its proper divisors (8849371).

28630085 is a wasteful number, since it uses less digits than its factorization.

28630085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520563.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 28630085 is about 5350.7088315475. The cubic root of 28630085 is about 305.9197712122.

The spelling of 28630085 in words is "twenty-eight million, six hundred thirty thousand, eighty-five".