29399905 has 8 divisors (see below), whose sum is σ = 35436672. Its totient is φ = 23415408.

The previous prime is 29399899. The next prime is 29399921. The reversal of 29399905 is 50999392.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29399905 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11817 + ... + 14086.

It is an arithmetic number, because the mean of its divisors is an integer number (4429584).

Almost surely, 2^29399905 is an apocalyptic number.

It is an amenable number.

29399905 is a deficient number, since it is larger than the sum of its proper divisors (6036767).

29399905 is a wasteful number, since it uses less digits than its factorization.

29399905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26135.

The product of its (nonzero) digits is 196830, while the sum is 46.

The square root of 29399905 is about 5422.1679243638. The cubic root of 29399905 is about 308.6374643825.

The spelling of 29399905 in words is "twenty-nine million, three hundred ninety-nine thousand, nine hundred five".