29421841 has 2 divisors, whose sum is σ = 29421842. Its totient is φ = 29421840.

The previous prime is 29421839. The next prime is 29421857. The reversal of 29421841 is 14812492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27783441 + 1638400 = 5271^2 + 1280^2 .

It is a cyclic number.

It is not a de Polignac number, because 29421841 - 2¹ = 29421839 is a prime.

Together with 29421839, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (29421811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14710920 + 14710921.

It is an arithmetic number, because the mean of its divisors is an integer number (14710921).

Almost surely, 2^29421841 is an apocalyptic number.

It is an amenable number.

29421841 is a deficient number, since it is larger than the sum of its proper divisors (1).

29421841 is an equidigital number, since it uses as much as digits as its factorization.

29421841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 29421841 is about 5424.1903543294. The cubic root of 29421841 is about 308.7142059943.

The spelling of 29421841 in words is "twenty-nine million, four hundred twenty-one thousand, eight hundred forty-one".