29991011 has 8 divisors (see below), whose sum is σ = 31463424. Its totient is φ = 28532680.

The previous prime is 29991001. The next prime is 29991019. The reversal of 29991011 is 11019992.

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

It is a cyclic number.

It is not a de Polignac number, because 29991011 - 2¹⁰ = 29989987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29991019) by changing a digit.

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, 980 + ... + 7806.

It is an arithmetic number, because the mean of its divisors is an integer number (3932928).

Almost surely, 2^29991011 is an apocalyptic number.

29991011 is a deficient number, since it is larger than the sum of its proper divisors (1472413).

29991011 is a wasteful number, since it uses less digits than its factorization.

29991011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7041.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 29991011 is about 5476.4049338960. The cubic root of 29991011 is about 310.6922131475.

The spelling of 29991011 in words is "twenty-nine million, nine hundred ninety-one thousand, eleven".