429878 has 4 divisors (see below), whose sum is σ = 644820. Its totient is φ = 214938.

The previous prime is 429853. The next prime is 429881. The reversal of 429878 is 878924.

429878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 107468 + ... + 107471.

It is an arithmetic number, because the mean of its divisors is an integer number (161205).

2⁴²⁹⁸⁷⁸ is an apocalyptic number.

429878 is a deficient number, since it is larger than the sum of its proper divisors (214942).

429878 is a wasteful number, since it uses less digits than its factorization.

429878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214941.

The product of its digits is 32256, while the sum is 38.

The square root of 429878 is about 655.6508217031. The cubic root of 429878 is about 75.4712841982.

The spelling of 429878 in words is "four hundred twenty-nine thousand, eight hundred seventy-eight".