436261 has 4 divisors (see below), whose sum is σ = 498592. Its totient is φ = 373932.

The previous prime is 436253. The next prime is 436273. The reversal of 436261 is 162634.

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 436261 - 2³ = 436253 is a prime.

It is the 661-st Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (436231) by changing a digit.

It is a nontrivial repunit in base 660.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31155 + ... + 31168.

It is an arithmetic number, because the mean of its divisors is an integer number (124648).

2⁴³⁶²⁶¹ is an apocalyptic number.

It is an amenable number.

436261 is a deficient number, since it is larger than the sum of its proper divisors (62331).

436261 is an equidigital number, since it uses as much as digits as its factorization.

436261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62330.

The product of its digits is 864, while the sum is 22.

The square root of 436261 is about 660.5005677515. The cubic root of 436261 is about 75.8429930402.

Adding to 436261 its reverse (162634), we get a palindrome (598895).

The spelling of 436261 in words is "four hundred thirty-six thousand, two hundred sixty-one".