226646647 has 4 divisors (see below), whose sum is σ = 232174656. Its totient is φ = 221118640.

The previous prime is 226646639. The next prime is 226646653. The reversal of 226646647 is 746646622.

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

It is a cyclic number.

It is not a de Polignac number, because 226646647 - 2³ = 226646639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226646617) 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, 2763943 + ... + 2764024.

It is an arithmetic number, because the mean of its divisors is an integer number (58043664).

Almost surely, 2^226646647 is an apocalyptic number.

226646647 is a deficient number, since it is larger than the sum of its proper divisors (5528009).

226646647 is an equidigital number, since it uses as much as digits as its factorization.

226646647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5528008.

The product of its digits is 580608, while the sum is 43.

The square root of 226646647 is about 15054.7881751953. The cubic root of 226646647 is about 609.7003338648.

The spelling of 226646647 in words is "two hundred twenty-six million, six hundred forty-six thousand, six hundred forty-seven".