29321913 has 8 divisors (see below), whose sum is σ = 39235168. Its totient is φ = 19478304.

The previous prime is 29321893. The next prime is 29321927. The reversal of 29321913 is 31912392.

It is a happy number.

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

It is not a de Polignac number, because 29321913 - 2⁵ = 29321881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29321953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16420 + ... + 18117.

It is an arithmetic number, because the mean of its divisors is an integer number (4904396).

Almost surely, 2^29321913 is an apocalyptic number.

It is an amenable number.

29321913 is a deficient number, since it is larger than the sum of its proper divisors (9913255).

29321913 is a wasteful number, since it uses less digits than its factorization.

29321913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34823.

The product of its digits is 2916, while the sum is 30.

The square root of 29321913 is about 5414.9711910591. The cubic root of 29321913 is about 308.3643051105.

The spelling of 29321913 in words is "twenty-nine million, three hundred twenty-one thousand, nine hundred thirteen".