28424335 has 4 divisors (see below), whose sum is σ = 34109208. Its totient is φ = 22739464.

The previous prime is 28424327. The next prime is 28424351. The reversal of 28424335 is 53342482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53342482 = 2 ⋅26671241.

It is a cyclic number.

It is not a de Polignac number, because 28424335 - 2³ = 28424327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28424297 and 28424306.

It is a congruent number.

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, 2842429 + ... + 2842438.

It is an arithmetic number, because the mean of its divisors is an integer number (8527302).

Almost surely, 2^28424335 is an apocalyptic number.

28424335 is a deficient number, since it is larger than the sum of its proper divisors (5684873).

28424335 is an equidigital number, since it uses as much as digits as its factorization.

28424335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684872.

The product of its digits is 23040, while the sum is 31.

The square root of 28424335 is about 5331.4477395919. The cubic root of 28424335 is about 305.1851782403.

The spelling of 28424335 in words is "twenty-eight million, four hundred twenty-four thousand, three hundred thirty-five".