423929 has 8 divisors (see below), whose sum is σ = 489888. Its totient is φ = 362560.

The previous prime is 423887. The next prime is 423931. The reversal of 423929 is 929324.

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

It is a de Polignac number, because none of the positive numbers 2^k-423929 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423949) 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, 947 + ... + 1320.

It is an arithmetic number, because the mean of its divisors is an integer number (61236).

2⁴²³⁹²⁹ is an apocalyptic number.

It is an amenable number.

423929 is a deficient number, since it is larger than the sum of its proper divisors (65959).

423929 is a wasteful number, since it uses less digits than its factorization.

423929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295.

The product of its digits is 3888, while the sum is 29.

The square root of 423929 is about 651.0983028699. The cubic root of 423929 is about 75.1215215125.

The spelling of 423929 in words is "four hundred twenty-three thousand, nine hundred twenty-nine".