423767 has 4 divisors (see below), whose sum is σ = 430776. Its totient is φ = 416760.

The previous prime is 423763. The next prime is 423769. The reversal of 423767 is 767324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423767 - 2² = 423763 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 2 + 7⁴ + 3⁹ + 6⁷ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423763) 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 3 ways as a sum of consecutive naturals, for example, 3413 + ... + 3534.

It is an arithmetic number, because the mean of its divisors is an integer number (107694).

2⁴²³⁷⁶⁷ is an apocalyptic number.

423767 is a deficient number, since it is larger than the sum of its proper divisors (7009).

423767 is an equidigital number, since it uses as much as digits as its factorization.

423767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008.

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

The square root of 423767 is about 650.9738858050. The cubic root of 423767 is about 75.1119513274. Note that the first 3 decimals are identical.

The spelling of 423767 in words is "four hundred twenty-three thousand, seven hundred sixty-seven".