227681 has 8 divisors (see below), whose sum is σ = 246240. Its totient is φ = 209728.

The previous prime is 227671. The next prime is 227693. The reversal of 227681 is 186722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 227681 - 2¹⁰ = 226657 is a prime.

It is a super-2 number, since 2×227681² = 103677275522, which contains 22 as substring.

It is a Duffinian number.

227681 is a modest number, since divided by 681 gives 227 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 227681.

It is not an unprimeable number, because it can be changed into a prime (227611) 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, 890 + ... + 1116.

It is an arithmetic number, because the mean of its divisors is an integer number (30780).

2²²⁷⁶⁸¹ is an apocalyptic number.

It is an amenable number.

227681 is a deficient number, since it is larger than the sum of its proper divisors (18559).

227681 is a wasteful number, since it uses less digits than its factorization.

227681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303.

The product of its digits is 1344, while the sum is 26.

The square root of 227681 is about 477.1593025395. The cubic root of 227681 is about 61.0626428057.

The spelling of 227681 in words is "two hundred twenty-seven thousand, six hundred eighty-one".