429931 has 2 divisors, whose sum is σ = 429932. Its totient is φ = 429930.

The previous prime is 429929. The next prime is 429937. The reversal of 429931 is 139924.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 429931 - 2¹ = 429929 is a prime.

It is a super-2 number, since 2×429931² = 369681329522, which contains 22 as substring.

Together with 429929, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 429931.

It is not a weakly prime, because it can be changed into another prime (429937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214965 + 214966.

It is an arithmetic number, because the mean of its divisors is an integer number (214966).

2⁴²⁹⁹³¹ is an apocalyptic number.

429931 is a deficient number, since it is larger than the sum of its proper divisors (1).

429931 is an equidigital number, since it uses as much as digits as its factorization.

429931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The square root of 429931 is about 655.6912383127. The cubic root of 429931 is about 75.4743857089.

The spelling of 429931 in words is "four hundred twenty-nine thousand, nine hundred thirty-one".