806423 has 4 divisors (see below), whose sum is σ = 809328. Its totient is φ = 803520.

The previous prime is 806389. The next prime is 806447. The reversal of 806423 is 324608.

It is a happy number.

806423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 806423 - 2¹⁸ = 544279 is a prime.

It is a d-powerful number, because it can be written as 8 + 0 + 4 + 6⁷ + 2¹⁹ + 3⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806453) 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, 986 + ... + 1607.

It is an arithmetic number, because the mean of its divisors is an integer number (202332).

2⁸⁰⁶⁴²³ is an apocalyptic number.

806423 is a deficient number, since it is larger than the sum of its proper divisors (2905).

806423 is a wasteful number, since it uses less digits than its factorization.

806423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 806423 is about 898.0105790023. The cubic root of 806423 is about 93.0795557741.

The spelling of 806423 in words is "eight hundred six thousand, four hundred twenty-three".