681190 has 16 divisors (see below), whose sum is σ = 1298592. Its totient is φ = 256384.

The previous prime is 681179. The next prime is 681221. The reversal of 681190 is 91186.

681190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×681190² = 928039632200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

681190 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 7 ways as a sum of consecutive naturals, for example, 1834 + ... + 2173.

It is an arithmetic number, because the mean of its divisors is an integer number (81162).

2⁶⁸¹¹⁹⁰ is an apocalyptic number.

681190 is a deficient number, since it is larger than the sum of its proper divisors (617402).

681190 is a wasteful number, since it uses less digits than its factorization.

681190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 681190 is about 825.3423532087. The cubic root of 681190 is about 87.9878598955.

The spelling of 681190 in words is "six hundred eighty-one thousand, one hundred ninety".