227691 has 12 divisors (see below), whose sum is σ = 341432. Its totient is φ = 151632.

The previous prime is 227671. The next prime is 227693. The reversal of 227691 is 196722.

It is not a de Polignac number, because 227691 - 2⁶ = 227627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 227691.

It is not an unprimeable number, because it can be changed into a prime (227693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226 + ... + 711.

2²²⁷⁶⁹¹ is an apocalyptic number.

227691 is a deficient number, since it is larger than the sum of its proper divisors (113741).

227691 is an frugal number, since it uses more digits than its factorization.

227691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 940 counting only the distinct ones).

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

The square root of 227691 is about 477.1697811052. The cubic root of 227691 is about 61.0635367721.

The spelling of 227691 in words is "two hundred twenty-seven thousand, six hundred ninety-one".