681227 has 4 divisors (see below), whose sum is σ = 684456. Its totient is φ = 678000.

The previous prime is 681221. The next prime is 681229. The reversal of 681227 is 722186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722186 = 2 ⋅361093.

It is a cyclic number.

It is not a de Polignac number, because 681227 - 2⁸ = 680971 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 681196 and 681205.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 681227.

It is not an unprimeable number, because it can be changed into a prime (681221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274 + ... + 1727.

It is an arithmetic number, because the mean of its divisors is an integer number (171114).

2⁶⁸¹²²⁷ is an apocalyptic number.

681227 is a deficient number, since it is larger than the sum of its proper divisors (3229).

681227 is a wasteful number, since it uses less digits than its factorization.

681227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228.

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

The square root of 681227 is about 825.3647678451. The cubic root of 681227 is about 87.9894529371.

It can be divided in two parts, 68 and 1227, that multiplied together give a triangular number (83436 = T₄₀₈).

The spelling of 681227 in words is "six hundred eighty-one thousand, two hundred twenty-seven".