29810939 has 2 divisors, whose sum is σ = 29810940. Its totient is φ = 29810938.

The previous prime is 29810929. The next prime is 29810941. The reversal of 29810939 is 93901892.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29810939 - 2¹⁶ = 29745403 is a prime.

It is a Sophie Germain prime.

Together with 29810941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 29810896 and 29810905.

It is not a weakly prime, because it can be changed into another prime (29810909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14905469 + 14905470.

It is an arithmetic number, because the mean of its divisors is an integer number (14905470).

Almost surely, 2^29810939 is an apocalyptic number.

29810939 is a deficient number, since it is larger than the sum of its proper divisors (1).

29810939 is an equidigital number, since it uses as much as digits as its factorization.

29810939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 29810939 is about 5459.9394685289. The cubic root of 29810939 is about 310.0691451727.

The spelling of 29810939 in words is "twenty-nine million, eight hundred ten thousand, nine hundred thirty-nine".