29023439 has 2 divisors, whose sum is σ = 29023440. Its totient is φ = 29023438.

The previous prime is 29023433. The next prime is 29023459. The reversal of 29023439 is 93432092.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29023439 is a prime.

It is a super-2 number, since 2×29023439² = 1684720022773442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29023433) 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, 14511719 + 14511720.

It is an arithmetic number, because the mean of its divisors is an integer number (14511720).

Almost surely, 2^29023439 is an apocalyptic number.

29023439 is a deficient number, since it is larger than the sum of its proper divisors (1).

29023439 is an equidigital number, since it uses as much as digits as its factorization.

29023439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 29023439 is about 5387.3406240927. The cubic root of 29023439 is about 307.3144327315.

The spelling of 29023439 in words is "twenty-nine million, twenty-three thousand, four hundred thirty-nine".