28824943 has 8 divisors (see below), whose sum is σ = 33040512. Its totient is φ = 24633816.

The previous prime is 28824923. The next prime is 28824949. The reversal of 28824943 is 34942882.

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

It is a cyclic number.

It is not a de Polignac number, because 28824943 - 2¹⁷ = 28693871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28824896 and 28824905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28824949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3505 + ... + 8362.

It is an arithmetic number, because the mean of its divisors is an integer number (4130064).

Almost surely, 2^28824943 is an apocalyptic number.

28824943 is a deficient number, since it is larger than the sum of its proper divisors (4215569).

28824943 is a wasteful number, since it uses less digits than its factorization.

28824943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12221.

The product of its digits is 110592, while the sum is 40.

The square root of 28824943 is about 5368.8865698579. The cubic root of 28824943 is about 306.6122384238.

The spelling of 28824943 in words is "twenty-eight million, eight hundred twenty-four thousand, nine hundred forty-three".