29828009 has 2 divisors, whose sum is σ = 29828010. Its totient is φ = 29828008.

The previous prime is 29827999. The next prime is 29828039. The reversal of 29828009 is 90082892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16483600 + 13344409 = 4060^2 + 3653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29828009 is a prime.

It is a Chen prime.

It is equal to p_1847738 and since 29828009 and 1847738 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (29828039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14914004 + 14914005.

It is an arithmetic number, because the mean of its divisors is an integer number (14914005).

Almost surely, 2^29828009 is an apocalyptic number.

It is an amenable number.

29828009 is a deficient number, since it is larger than the sum of its proper divisors (1).

29828009 is an equidigital number, since it uses as much as digits as its factorization.

29828009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 29828009 is about 5461.5024489604. The cubic root of 29828009 is about 310.1283166330.

The spelling of 29828009 in words is "twenty-nine million, eight hundred twenty-eight thousand, nine".