29421913 has 2 divisors, whose sum is σ = 29421914. Its totient is φ = 29421912.

The previous prime is 29421881. The next prime is 29421949. The reversal of 29421913 is 31912492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27594009 + 1827904 = 5253^2 + 1352^2 .

It is a cyclic number.

It is not a de Polignac number, because 29421913 - 2⁵ = 29421881 is a prime.

It is not a weakly prime, because it can be changed into another prime (29428913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14710956 + 14710957.

It is an arithmetic number, because the mean of its divisors is an integer number (14710957).

Almost surely, 2^29421913 is an apocalyptic number.

It is an amenable number.

29421913 is a deficient number, since it is larger than the sum of its proper divisors (1).

29421913 is an equidigital number, since it uses as much as digits as its factorization.

29421913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 29421913 is about 5424.1969912605. The cubic root of 29421913 is about 308.7144578187.

The spelling of 29421913 in words is "twenty-nine million, four hundred twenty-one thousand, nine hundred thirteen".