681234 has 8 divisors (see below), whose sum is σ = 1362480. Its totient is φ = 227076.

The previous prime is 681229. The next prime is 681251. The reversal of 681234 is 432186.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

681234 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56764 + ... + 56775.

It is an arithmetic number, because the mean of its divisors is an integer number (170310).

2⁶⁸¹²³⁴ is an apocalyptic number.

681234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

681234 is a wasteful number, since it uses less digits than its factorization.

681234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113544.

The product of its digits is 1152, while the sum is 24.

The square root of 681234 is about 825.3690083835. The cubic root of 681234 is about 87.9897543168.

The spelling of 681234 in words is "six hundred eighty-one thousand, two hundred thirty-four".