28824949 has 2 divisors, whose sum is σ = 28824950. Its totient is φ = 28824948.

The previous prime is 28824923. The next prime is 28824953. The reversal of 28824949 is 94942882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28196100 + 628849 = 5310^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 28824949 - 2⁹ = 28824437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28824899 and 28824908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28824149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14412474 + 14412475.

It is an arithmetic number, because the mean of its divisors is an integer number (14412475).

Almost surely, 2^28824949 is an apocalyptic number.

It is an amenable number.

28824949 is a deficient number, since it is larger than the sum of its proper divisors (1).

28824949 is an equidigital number, since it uses as much as digits as its factorization.

28824949 is an odious number, because the sum of its binary digits is odd.

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

The square root of 28824949 is about 5368.8871286329. The cubic root of 28824949 is about 306.6122596979.

The spelling of 28824949 in words is "twenty-eight million, eight hundred twenty-four thousand, nine hundred forty-nine".