29194421 has 2 divisors, whose sum is σ = 29194422. Its totient is φ = 29194420.

The previous prime is 29194411. The next prime is 29194433. The reversal of 29194421 is 12449192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19018321 + 10176100 = 4361^2 + 3190^2 .

It is a cyclic number.

It is not a de Polignac number, because 29194421 - 2⁶ = 29194357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29194411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14597210 + 14597211.

It is an arithmetic number, because the mean of its divisors is an integer number (14597211).

Almost surely, 2^29194421 is an apocalyptic number.

It is an amenable number.

29194421 is a deficient number, since it is larger than the sum of its proper divisors (1).

29194421 is an equidigital number, since it uses as much as digits as its factorization.

29194421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 29194421 is about 5403.1861896477. The cubic root of 29194421 is about 307.9167320022.

The spelling of 29194421 in words is "twenty-nine million, one hundred ninety-four thousand, four hundred twenty-one".