423776 has 48 divisors (see below), whose sum is σ = 952560. Its totient is φ = 184320.

The previous prime is 423769. The next prime is 423779. The reversal of 423776 is 677324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423779) by changing a digit.

423776 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10316 + ... + 10356.

It is an arithmetic number, because the mean of its divisors is an integer number (19845).

2⁴²³⁷⁷⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476280).

423776 is an abundant number, since it is smaller than the sum of its proper divisors (528784).

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

423776 is a wasteful number, since it uses less digits than its factorization.

423776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 79 counting only the distinct ones).

The product of its digits is 7056, while the sum is 29.

The square root of 423776 is about 650.9807984879. The cubic root of 423776 is about 75.1124830683.

The spelling of 423776 in words is "four hundred twenty-three thousand, seven hundred seventy-six".