28498235 has 4 divisors (see below), whose sum is σ = 34197888. Its totient is φ = 22798584.

The previous prime is 28498231. The next prime is 28498241. The reversal of 28498235 is 53289482.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28498235 - 2² = 28498231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28498192 and 28498201.

It is not an unprimeable number, because it can be changed into a prime (28498231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2849819 + ... + 2849828.

It is an arithmetic number, because the mean of its divisors is an integer number (8549472).

Almost surely, 2^28498235 is an apocalyptic number.

28498235 is a deficient number, since it is larger than the sum of its proper divisors (5699653).

28498235 is an equidigital number, since it uses as much as digits as its factorization.

28498235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699652.

The product of its digits is 138240, while the sum is 41.

The square root of 28498235 is about 5338.3738160605. The cubic root of 28498235 is about 305.4494314776.

The spelling of 28498235 in words is "twenty-eight million, four hundred ninety-eight thousand, two hundred thirty-five".