28329029 has 2 divisors, whose sum is σ = 28329030. Its totient is φ = 28329028.

The previous prime is 28329011. The next prime is 28329047. The reversal of 28329029 is 92092382.

It is a balanced prime because it is at equal distance from previous prime (28329011) and next prime (28329047).

It can be written as a sum of positive squares in only one way, i.e., 26884225 + 1444804 = 5185^2 + 1202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28329029 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28329029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28329079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14164514 + 14164515.

It is an arithmetic number, because the mean of its divisors is an integer number (14164515).

Almost surely, 2^28329029 is an apocalyptic number.

It is an amenable number.

28329029 is a deficient number, since it is larger than the sum of its proper divisors (1).

28329029 is an equidigital number, since it uses as much as digits as its factorization.

28329029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 28329029 is about 5322.5021371532. The cubic root of 28329029 is about 304.8437038493.

The spelling of 28329029 in words is "twenty-eight million, three hundred twenty-nine thousand, twenty-nine".