429881 has 2 divisors, whose sum is σ = 429882. Its totient is φ = 429880.

The previous prime is 429853. The next prime is 429887. The reversal of 429881 is 188924.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313600 + 116281 = 560^2 + 341^2 .

It is a cyclic number.

It is not a de Polignac number, because 429881 - 2⁶ = 429817 is a prime.

It is a super-2 number, since 2×429881² = 369595348322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (429887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214940 + 214941.

It is an arithmetic number, because the mean of its divisors is an integer number (214941).

2⁴²⁹⁸⁸¹ is an apocalyptic number.

It is an amenable number.

429881 is a deficient number, since it is larger than the sum of its proper divisors (1).

429881 is an equidigital number, since it uses as much as digits as its factorization.

429881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 32.

The square root of 429881 is about 655.6531095023. The cubic root of 429881 is about 75.4714597622.

The spelling of 429881 in words is "four hundred twenty-nine thousand, eight hundred eighty-one".