681276 has 12 divisors (see below), whose sum is σ = 1589672. Its totient is φ = 227088.

The previous prime is 681271. The next prime is 681293. The reversal of 681276 is 672186.

It is a happy number.

681276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681271) by changing a digit.

681276 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28375 + ... + 28398.

2⁶⁸¹²⁷⁶ is an apocalyptic number.

It is an amenable number.

681276 is an abundant number, since it is smaller than the sum of its proper divisors (908396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

681276 is a wasteful number, since it uses less digits than its factorization.

681276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56780 (or 56778 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 681276 is about 825.3944511565. The cubic root of 681276 is about 87.9915625519.

It can be divided in two parts, 68 and 1276, that multiplied together give a palindrome (86768).

The spelling of 681276 in words is "six hundred eighty-one thousand, two hundred seventy-six".