28844929 has 2 divisors, whose sum is σ = 28844930. Its totient is φ = 28844928.

The previous prime is 28844927. The next prime is 28845007. The reversal of 28844929 is 92944882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27804529 + 1040400 = 5273^2 + 1020^2 .

It is a cyclic number.

It is not a de Polignac number, because 28844929 - 2¹ = 28844927 is a prime.

Together with 28844927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28844927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14422464 + 14422465.

It is an arithmetic number, because the mean of its divisors is an integer number (14422465).

Almost surely, 2^28844929 is an apocalyptic number.

It is an amenable number.

28844929 is a deficient number, since it is larger than the sum of its proper divisors (1).

28844929 is an equidigital number, since it uses as much as digits as its factorization.

28844929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 46.

The square root of 28844929 is about 5370.7475271139. The cubic root of 28844929 is about 306.6830860511.

The spelling of 28844929 in words is "twenty-eight million, eight hundred forty-four thousand, nine hundred twenty-nine".