423829 has 8 divisors (see below), whose sum is σ = 488448. Its totient is φ = 360240.

The previous prime is 423823. The next prime is 423847. The reversal of 423829 is 928324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423797 and 423806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1179 + ... + 1495.

It is an arithmetic number, because the mean of its divisors is an integer number (61056).

2⁴²³⁸²⁹ is an apocalyptic number.

It is an amenable number.

423829 is a deficient number, since it is larger than the sum of its proper divisors (64619).

423829 is a wasteful number, since it uses less digits than its factorization.

423829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515.

The product of its digits is 3456, while the sum is 28.

The square root of 423829 is about 651.0215050211. The cubic root of 423829 is about 75.1156142789.

Subtracting from 423829 its sum of digits (28), we obtain a square (423801 = 651²).

The spelling of 423829 in words is "four hundred twenty-three thousand, eight hundred twenty-nine".