423807 has 4 divisors (see below), whose sum is σ = 565080. Its totient is φ = 282536.

The previous prime is 423803. The next prime is 423823. The reversal of 423807 is 708324.

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 423807 - 2² = 423803 is a prime.

It is a super-2 number, since 2×423807² = 359224746498, which contains 22 as substring.

It is a D-number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 423807.

It is not an unprimeable number, because it can be changed into a prime (423803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70632 + ... + 70637.

It is an arithmetic number, because the mean of its divisors is an integer number (141270).

2⁴²³⁸⁰⁷ is an apocalyptic number.

423807 is a deficient number, since it is larger than the sum of its proper divisors (141273).

423807 is a wasteful number, since it uses less digits than its factorization.

423807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141272.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 423807 is about 651.0046082786. The cubic root of 423807 is about 75.1143145628.

The spelling of 423807 in words is "four hundred twenty-three thousand, eight hundred seven".