681226 has 32 divisors (see below), whose sum is σ = 1330560. Its totient is φ = 254016.

The previous prime is 681221. The next prime is 681229. The reversal of 681226 is 622186.

It is a self number, because there is not a number n which added to its sum of digits gives 681226.

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 15 ways as a sum of consecutive naturals, for example, 3360 + ... + 3556.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2⁶⁸¹²²⁶ is an apocalyptic number.

681226 is a deficient number, since it is larger than the sum of its proper divisors (649334).

681226 is a wasteful number, since it uses less digits than its factorization.

681226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238.

The product of its digits is 1152, while the sum is 25.

The square root of 681226 is about 825.3641620521. The cubic root of 681226 is about 87.9894098826.

The spelling of 681226 in words is "six hundred eighty-one thousand, two hundred twenty-six".