227621 has 8 divisors (see below), whose sum is σ = 241920. Its totient is φ = 213808.

The previous prime is 227611. The next prime is 227627. The reversal of 227621 is 126722.

227621 = T₅₈ + T₅₉ + ... + T₁₁₅.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227621 is a prime.

It is a super-2 number, since 2×227621² = 103622639282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 227593 and 227602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227627) 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, 1280 + ... + 1446.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2²²⁷⁶²¹ is an apocalyptic number.

It is an amenable number.

227621 is a deficient number, since it is larger than the sum of its proper divisors (14299).

227621 is a wasteful number, since it uses less digits than its factorization.

227621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243.

The product of its digits is 336, while the sum is 20.

The square root of 227621 is about 477.0964263123. The cubic root of 227621 is about 61.0572784576.

It can be divided in two parts, 227 and 621, that added together give a palindrome (848).

The spelling of 227621 in words is "two hundred twenty-seven thousand, six hundred twenty-one".