29421317 has 2 divisors, whose sum is σ = 29421318. Its totient is φ = 29421316.

The previous prime is 29421299. The next prime is 29421319. The reversal of 29421317 is 71312492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17023876 + 12397441 = 4126^2 + 3521^2 .

It is a cyclic number.

It is not a de Polignac number, because 29421317 - 2¹⁸ = 29159173 is a prime.

It is a super-2 number, since 2×29421317² = 1731227788028978, which contains 22 as substring.

Together with 29421319, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29421317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29421319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14710658 + 14710659.

It is an arithmetic number, because the mean of its divisors is an integer number (14710659).

Almost surely, 2^29421317 is an apocalyptic number.

It is an amenable number.

29421317 is a deficient number, since it is larger than the sum of its proper divisors (1).

29421317 is an equidigital number, since it uses as much as digits as its factorization.

29421317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

The square root of 29421317 is about 5424.1420519747. The cubic root of 29421317 is about 308.7123732606.

The spelling of 29421317 in words is "twenty-nine million, four hundred twenty-one thousand, three hundred seventeen".