29214421 has 2 divisors, whose sum is σ = 29214422. Its totient is φ = 29214420.

The previous prime is 29214413. The next prime is 29214443. The reversal of 29214421 is 12441292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20124196 + 9090225 = 4486^2 + 3015^2 .

It is a cyclic number.

It is not a de Polignac number, because 29214421 - 2³ = 29214413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29214491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14607210 + 14607211.

It is an arithmetic number, because the mean of its divisors is an integer number (14607211).

Almost surely, 2^29214421 is an apocalyptic number.

It is an amenable number.

29214421 is a deficient number, since it is larger than the sum of its proper divisors (1).

29214421 is an equidigital number, since it uses as much as digits as its factorization.

29214421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 29214421 is about 5405.0366326233. The cubic root of 29214421 is about 307.9870300099.

The spelling of 29214421 in words is "twenty-nine million, two hundred fourteen thousand, four hundred twenty-one".