227649 has 4 divisors (see below), whose sum is σ = 303536. Its totient is φ = 151764.

The previous prime is 227629. The next prime is 227651. The reversal of 227649 is 946722.

It is a happy number.

227649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 227649 - 2⁸ = 227393 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227609) 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, 37939 + ... + 37944.

It is an arithmetic number, because the mean of its divisors is an integer number (75884).

2²²⁷⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

227649 is a deficient number, since it is larger than the sum of its proper divisors (75887).

227649 is an equidigital number, since it uses as much as digits as its factorization.

227649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75886.

The product of its digits is 6048, while the sum is 30.

The square root of 227649 is about 477.1257695828. The cubic root of 227649 is about 61.0597819373.

The spelling of 227649 in words is "two hundred twenty-seven thousand, six hundred forty-nine".