429601421 has 2 divisors, whose sum is σ = 429601422. Its totient is φ = 429601420.

The previous prime is 429601409. The next prime is 429601453. The reversal of 429601421 is 124106924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218625796 + 210975625 = 14786^2 + 14525^2 .

It is a cyclic number.

It is not a de Polignac number, because 429601421 - 2¹⁰ = 429600397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429609421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214800710 + 214800711.

It is an arithmetic number, because the mean of its divisors is an integer number (214800711).

Almost surely, 2^429601421 is an apocalyptic number.

It is an amenable number.

429601421 is a deficient number, since it is larger than the sum of its proper divisors (1).

429601421 is an equidigital number, since it uses as much as digits as its factorization.

429601421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 429601421 is about 20726.8285321223. The cubic root of 429601421 is about 754.5509491460.

The spelling of 429601421 in words is "four hundred twenty-nine million, six hundred one thousand, four hundred twenty-one".