227822681 has 4 divisors (see below), whose sum is σ = 228310992. Its totient is φ = 227334372.

The previous prime is 227822671. The next prime is 227822701. The reversal of 227822681 is 186228722.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227822681 is a prime.

It is a super-2 number, since 2×227822681² = 103806347956055522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (227822611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243455 + ... + 244388.

It is an arithmetic number, because the mean of its divisors is an integer number (57077748).

Almost surely, 2^227822681 is an apocalyptic number.

It is an amenable number.

227822681 is a deficient number, since it is larger than the sum of its proper divisors (488311).

227822681 is an equidigital number, since it uses as much as digits as its factorization.

227822681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488310.

The product of its digits is 43008, while the sum is 38.

The square root of 227822681 is about 15093.7961096604. The cubic root of 227822681 is about 610.7530617006.

The spelling of 227822681 in words is "two hundred twenty-seven million, eight hundred twenty-two thousand, six hundred eighty-one".