423996 has 24 divisors (see below), whose sum is σ = 1002960. Its totient is φ = 139392.

The previous prime is 423991. The next prime is 424001. The reversal of 423996 is 699324.

It is an interprime number because it is at equal distance from previous prime (423991) and next prime (424001).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423991) 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, 870 + ... + 1266.

It is an arithmetic number, because the mean of its divisors is an integer number (41790).

2⁴²³⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

423996 is an abundant number, since it is smaller than the sum of its proper divisors (578964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423996 is a wasteful number, since it uses less digits than its factorization.

423996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 491 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 423996 is about 651.1497523612. The cubic root of 423996 is about 75.1254788393.

The spelling of 423996 in words is "four hundred twenty-three thousand, nine hundred ninety-six".