226729 has 4 divisors (see below), whose sum is σ = 240084. Its totient is φ = 213376.

The previous prime is 226697. The next prime is 226741. The reversal of 226729 is 927622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121104 + 105625 = 348^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 226729 - 2⁵ = 226697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226697 and 226706.

It is not an unprimeable number, because it can be changed into a prime (226769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6652 + ... + 6685.

It is an arithmetic number, because the mean of its divisors is an integer number (60021).

2²²⁶⁷²⁹ is an apocalyptic number.

It is an amenable number.

226729 is a deficient number, since it is larger than the sum of its proper divisors (13355).

226729 is a wasteful number, since it uses less digits than its factorization.

226729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13354.

The product of its digits is 3024, while the sum is 28.

The square root of 226729 is about 476.1606871635. The cubic root of 226729 is about 60.9774170638.

The spelling of 226729 in words is "two hundred twenty-six thousand, seven hundred twenty-nine".