29053421 has 2 divisors, whose sum is σ = 29053422. Its totient is φ = 29053420.

The previous prime is 29053397. The next prime is 29053463. The reversal of 29053421 is 12435092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29041321 + 12100 = 5389^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 29053421 - 2¹⁸ = 28791277 is a prime.

It is a super-5 number, since 5×29053421⁵ (a number of 39 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29053021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14526710 + 14526711.

It is an arithmetic number, because the mean of its divisors is an integer number (14526711).

Almost surely, 2^29053421 is an apocalyptic number.

It is an amenable number.

29053421 is a deficient number, since it is larger than the sum of its proper divisors (1).

29053421 is an equidigital number, since it uses as much as digits as its factorization.

29053421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 29053421 is about 5390.1225403510. The cubic root of 29053421 is about 307.4202176962.

The spelling of 29053421 in words is "twenty-nine million, fifty-three thousand, four hundred twenty-one".