28230635 has 4 divisors (see below), whose sum is σ = 33876768. Its totient is φ = 22584504.

The previous prime is 28230623. The next prime is 28230647. The reversal of 28230635 is 53603282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53603282 = 2 ⋅26801641.

It is an interprime number because it is at equal distance from previous prime (28230623) and next prime (28230647).

It is a cyclic number.

It is not a de Polignac number, because 28230635 - 2⁴ = 28230619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28230598 and 28230607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2823059 + ... + 2823068.

It is an arithmetic number, because the mean of its divisors is an integer number (8469192).

Almost surely, 2^28230635 is an apocalyptic number.

28230635 is a deficient number, since it is larger than the sum of its proper divisors (5646133).

28230635 is an equidigital number, since it uses as much as digits as its factorization.

28230635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646132.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 28230635 is about 5313.2508881098. The cubic root of 28230635 is about 304.4903609338.

The spelling of 28230635 in words is "twenty-eight million, two hundred thirty thousand, six hundred thirty-five".