680894 has 4 divisors (see below), whose sum is σ = 1021344. Its totient is φ = 340446.

The previous prime is 680881. The next prime is 680917. The reversal of 680894 is 498086.

It is a semiprime because it is the product of two primes.

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 680894.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170222 + ... + 170225.

It is an arithmetic number, because the mean of its divisors is an integer number (255336).

2⁶⁸⁰⁸⁹⁴ is an apocalyptic number.

680894 is a deficient number, since it is larger than the sum of its proper divisors (340450).

680894 is a wasteful number, since it uses less digits than its factorization.

680894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340449.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 680894 is about 825.1630141978. The cubic root of 680894 is about 87.9751134861.

The spelling of 680894 in words is "six hundred eighty thousand, eight hundred ninety-four".