29979111 has 16 divisors (see below), whose sum is σ = 40981248. Its totient is φ = 19488000.

The previous prime is 29979073. The next prime is 29979119. The reversal of 29979111 is 11197992.

It is not a de Polignac number, because 29979111 - 2¹⁰ = 29978087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29979111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29979119) 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, 19936 + ... + 21386.

It is an arithmetic number, because the mean of its divisors is an integer number (2561328).

Almost surely, 2^29979111 is an apocalyptic number.

29979111 is a deficient number, since it is larger than the sum of its proper divisors (11002137).

29979111 is a wasteful number, since it uses less digits than its factorization.

29979111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622.

The product of its digits is 10206, while the sum is 39.

The square root of 29979111 is about 5475.3183469092. The cubic root of 29979111 is about 310.6511149837.

The spelling of 29979111 in words is "twenty-nine million, nine hundred seventy-nine thousand, one hundred eleven".