436641 has 4 divisors (see below), whose sum is σ = 582192. Its totient is φ = 291092.

The previous prime is 436627. The next prime is 436649. The reversal of 436641 is 146634.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 436641 - 2¹¹ = 434593 is a prime.

It is a D-number.

436641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (436649) 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, 72771 + ... + 72776.

It is an arithmetic number, because the mean of its divisors is an integer number (145548).

2⁴³⁶⁶⁴¹ is an apocalyptic number.

It is an amenable number.

436641 is a deficient number, since it is larger than the sum of its proper divisors (145551).

436641 is a wasteful number, since it uses less digits than its factorization.

436641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145550.

The product of its digits is 1728, while the sum is 24.

The square root of 436641 is about 660.7881657536. The cubic root of 436641 is about 75.8650073646.

The spelling of 436641 in words is "four hundred thirty-six thousand, six hundred forty-one".