28013935 has 8 divisors (see below), whose sum is σ = 33646896. Its totient is φ = 22391040.

The previous prime is 28013917. The next prime is 28013939. The reversal of 28013935 is 53931082.

It is a happy number.

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

It is not a de Polignac number, because 28013935 - 2⁹ = 28013423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28013897 and 28013906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28013939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6655 + ... + 10015.

It is an arithmetic number, because the mean of its divisors is an integer number (4205862).

Almost surely, 2^28013935 is an apocalyptic number.

28013935 is a deficient number, since it is larger than the sum of its proper divisors (5632961).

28013935 is a wasteful number, since it uses less digits than its factorization.

28013935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 28013935 is about 5292.8191920752. The cubic root of 28013935 is about 303.7092636751.

The spelling of 28013935 in words is "twenty-eight million, thirteen thousand, nine hundred thirty-five".