29009939 has 8 divisors (see below), whose sum is σ = 35104608. Its totient is φ = 23402880.

The previous prime is 29009909. The next prime is 29009963. The reversal of 29009939 is 93990092.

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

It is not a de Polignac number, because 29009939 - 2⁸ = 29009683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29009896 and 29009905.

It is not an unprimeable number, because it can be changed into a prime (29009909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121772 + ... + 122009.

It is an arithmetic number, because the mean of its divisors is an integer number (4388076).

Almost surely, 2^29009939 is an apocalyptic number.

29009939 is a deficient number, since it is larger than the sum of its proper divisors (6094669).

29009939 is a wasteful number, since it uses less digits than its factorization.

29009939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243805.

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 29009939 is about 5386.0875410636. The cubic root of 29009939 is about 307.2667771308.

The spelling of 29009939 in words is "twenty-nine million, nine thousand, nine hundred thirty-nine".