680194 has 8 divisors (see below), whose sum is σ = 1025280. Its totient is φ = 338436.

The previous prime is 680189. The next prime is 680203. The reversal of 680194 is 491086.

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

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, 234 + ... + 1189.

It is an arithmetic number, because the mean of its divisors is an integer number (128160).

2⁶⁸⁰¹⁹⁴ is an apocalyptic number.

680194 is a deficient number, since it is larger than the sum of its proper divisors (345086).

680194 is a wasteful number, since it uses less digits than its factorization.

680194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 680194 is about 824.7387465131. The cubic root of 680194 is about 87.9449552456.

It can be divided in two parts, 6 and 80194, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 680194 in words is "six hundred eighty thousand, one hundred ninety-four".