436423 has 8 divisors (see below), whose sum is σ = 478800. Its totient is φ = 395328.

The previous prime is 436417. The next prime is 436427. The reversal of 436423 is 324634.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 436423 - 2¹³ = 428231 is a prime.

It is a Duffinian number.

436423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 436394 and 436403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (436427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483 + ... + 1051.

It is an arithmetic number, because the mean of its divisors is an integer number (59850).

2⁴³⁶⁴²³ is an apocalyptic number.

436423 is a deficient number, since it is larger than the sum of its proper divisors (42377).

436423 is a wasteful number, since it uses less digits than its factorization.

436423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its digits is 1728, while the sum is 22.

The square root of 436423 is about 660.6231906314. The cubic root of 436423 is about 75.8523796569.

The spelling of 436423 in words is "four hundred thirty-six thousand, four hundred twenty-three".