227961 has 8 divisors (see below), whose sum is σ = 337760. Its totient is φ = 151956.

The previous prime is 227951. The next prime is 227977. The reversal of 227961 is 169722.

It is not a de Polignac number, because 227961 - 2¹⁰ = 226937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8443 = 227961 / (2 + 2 + 7 + 9 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4195 + ... + 4248.

It is an arithmetic number, because the mean of its divisors is an integer number (42220).

2²²⁷⁹⁶¹ is an apocalyptic number.

It is an amenable number.

227961 is a deficient number, since it is larger than the sum of its proper divisors (109799).

227961 is an equidigital number, since it uses as much as digits as its factorization.

227961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8452 (or 8446 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 227961 is about 477.4526154500. The cubic root of 227961 is about 61.0876639771.

The spelling of 227961 in words is "two hundred twenty-seven thousand, nine hundred sixty-one".