681207 has 24 divisors (see below), whose sum is σ = 1042416. Its totient is φ = 393984.

The previous prime is 681179. The next prime is 681221. The reversal of 681207 is 702186.

It is not a de Polignac number, because 681207 - 2¹² = 677111 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 681207.

It is not an unprimeable number, because it can be changed into a prime (681257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18393 + ... + 18429.

It is an arithmetic number, because the mean of its divisors is an integer number (43434).

2⁶⁸¹²⁰⁷ is an apocalyptic number.

681207 is a deficient number, since it is larger than the sum of its proper divisors (361209).

681207 is a wasteful number, since it uses less digits than its factorization.

681207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 681207 is about 825.3526519010. The cubic root of 681207 is about 87.9885918407.

It can be divided in two parts, 681 and 207, that added together give a palindrome (888).

The spelling of 681207 in words is "six hundred eighty-one thousand, two hundred seven".