29913439 has 2 divisors, whose sum is σ = 29913440. Its totient is φ = 29913438.

The previous prime is 29913437. The next prime is 29913451. The reversal of 29913439 is 93431992.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29913439 - 2¹ = 29913437 is a prime.

Together with 29913437, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29913431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14956719 + 14956720.

It is an arithmetic number, because the mean of its divisors is an integer number (14956720).

Almost surely, 2^29913439 is an apocalyptic number.

29913439 is a deficient number, since it is larger than the sum of its proper divisors (1).

29913439 is an equidigital number, since it uses as much as digits as its factorization.

29913439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 40.

The square root of 29913439 is about 5469.3179647923. The cubic root of 29913439 is about 310.4241125330.

The spelling of 29913439 in words is "twenty-nine million, nine hundred thirteen thousand, four hundred thirty-nine".