28882401 has 4 divisors (see below), whose sum is σ = 38509872. Its totient is φ = 19254932.

The previous prime is 28882391. The next prime is 28882417. The reversal of 28882401 is 10428882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28882401 - 2¹¹ = 28880353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28882471) 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, 4813731 + ... + 4813736.

It is an arithmetic number, because the mean of its divisors is an integer number (9627468).

Almost surely, 2^28882401 is an apocalyptic number.

It is an amenable number.

28882401 is a deficient number, since it is larger than the sum of its proper divisors (9627471).

28882401 is an equidigital number, since it uses as much as digits as its factorization.

28882401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9627470.

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 28882401 is about 5374.2349222936. The cubic root of 28882401 is about 306.8158309993.

The spelling of 28882401 in words is "twenty-eight million, eight hundred eighty-two thousand, four hundred one".