423927 has 16 divisors (see below), whose sum is σ = 718080. Its totient is φ = 242136.

The previous prime is 423887. The next prime is 423931. The reversal of 423927 is 729324.

It is not a de Polignac number, because 423927 - 2¹² = 419831 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 423927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 933 + ... + 1310.

It is an arithmetic number, because the mean of its divisors is an integer number (44880).

2⁴²³⁹²⁷ is an apocalyptic number.

423927 is a deficient number, since it is larger than the sum of its proper divisors (294153).

423927 is a wasteful number, since it uses less digits than its factorization.

423927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259 (or 2253 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 423927 is about 651.0967670016. The cubic root of 423927 is about 75.1214033769.

Subtracting from 423927 its product of digits (3024), we obtain a triangular number (420903 = T₉₁₇).

It can be divided in two parts, 42 and 3927, that added together give a square (3969 = 63²).

The spelling of 423927 in words is "four hundred twenty-three thousand, nine hundred twenty-seven".