423913 has 8 divisors (see below), whose sum is σ = 505728. Its totient is φ = 347424.

The previous prime is 423887. The next prime is 423931. The reversal of 423913 is 319324.

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

It is not a de Polignac number, because 423913 - 2¹³ = 415721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156 + ... + 1477.

It is an arithmetic number, because the mean of its divisors is an integer number (63216).

2⁴²³⁹¹³ is an apocalyptic number.

It is an amenable number.

423913 is a deficient number, since it is larger than the sum of its proper divisors (81815).

423913 is a wasteful number, since it uses less digits than its factorization.

423913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663.

The product of its digits is 648, while the sum is 22.

The square root of 423913 is about 651.0860158228. The cubic root of 423913 is about 75.1205764175.

The spelling of 423913 in words is "four hundred twenty-three thousand, nine hundred thirteen".