226706729 has 4 divisors (see below), whose sum is σ = 226748676. Its totient is φ = 226664784.

The previous prime is 226706723. The next prime is 226706731. The reversal of 226706729 is 927607622.

It is a happy number.

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 111788329 + 114918400 = 10573^2 + 10720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226706729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226706723) 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, 11414 + ... + 24159.

It is an arithmetic number, because the mean of its divisors is an integer number (56687169).

Almost surely, 2^226706729 is an apocalyptic number.

It is an amenable number.

226706729 is a deficient number, since it is larger than the sum of its proper divisors (41947).

226706729 is an equidigital number, since it uses as much as digits as its factorization.

226706729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41946.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 226706729 is about 15056.7834878503. The cubic root of 226706729 is about 609.7542044742.

The spelling of 226706729 in words is "two hundred twenty-six million, seven hundred six thousand, seven hundred twenty-nine".