29112009 has 16 divisors (see below), whose sum is σ = 41858880. Its totient is φ = 17936640.

The previous prime is 29111977. The next prime is 29112011. The reversal of 29112009 is 90021192.

It is not a de Polignac number, because 29112009 - 2⁵ = 29111977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29112009.

It is not an unprimeable number, because it can be changed into a prime (29112049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3892 + ... + 8565.

It is an arithmetic number, because the mean of its divisors is an integer number (2616180).

Almost surely, 2^29112009 is an apocalyptic number.

It is an amenable number.

29112009 is a deficient number, since it is larger than the sum of its proper divisors (12746871).

29112009 is a wasteful number, since it uses less digits than its factorization.

29112009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12520.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 29112009 is about 5395.5545590792. The cubic root of 29112009 is about 307.6267228372.

The spelling of 29112009 in words is "twenty-nine million, one hundred twelve thousand, nine".