28108467 has 12 divisors (see below), whose sum is σ = 42738280. Its totient is φ = 17752608.

The previous prime is 28108447. The next prime is 28108477. The reversal of 28108467 is 76480182.

It is not a de Polignac number, because 28108467 - 2⁸ = 28108211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28108417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82018 + ... + 82359.

Almost surely, 2^28108467 is an apocalyptic number.

28108467 is a deficient number, since it is larger than the sum of its proper divisors (14629813).

28108467 is a wasteful number, since it uses less digits than its factorization.

28108467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164402 (or 164399 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 28108467 is about 5301.7418835700. The cubic root of 28108467 is about 304.0504987382.

The spelling of 28108467 in words is "twenty-eight million, one hundred eight thousand, four hundred sixty-seven".