423747 has 12 divisors (see below), whose sum is σ = 617760. Its totient is φ = 279888.

The previous prime is 423727. The next prime is 423749. The reversal of 423747 is 747324.

It is not a de Polignac number, because 423747 - 2¹¹ = 421699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423747.

It is not an unprimeable number, because it can be changed into a prime (423749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1654 + ... + 1892.

It is an arithmetic number, because the mean of its divisors is an integer number (51480).

2⁴²³⁷⁴⁷ is an apocalyptic number.

423747 is a deficient number, since it is larger than the sum of its proper divisors (194013).

423747 is a wasteful number, since it uses less digits than its factorization.

423747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 439 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 423747 is about 650.9585240244. The cubic root of 423747 is about 75.1107696539.

The spelling of 423747 in words is "four hundred twenty-three thousand, seven hundred forty-seven", and thus it is an iban number.