28044823 has 2 divisors, whose sum is σ = 28044824. Its totient is φ = 28044822.

The previous prime is 28044767. The next prime is 28044833. The reversal of 28044823 is 32844082.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28044823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28044833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14022411 + 14022412.

It is an arithmetic number, because the mean of its divisors is an integer number (14022412).

Almost surely, 2^28044823 is an apocalyptic number.

28044823 is a deficient number, since it is larger than the sum of its proper divisors (1).

28044823 is an equidigital number, since it uses as much as digits as its factorization.

28044823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 28044823 is about 5295.7363038580. The cubic root of 28044823 is about 303.8208453581.

The spelling of 28044823 in words is "twenty-eight million, forty-four thousand, eight hundred twenty-three".