680336 has 20 divisors (see below), whose sum is σ = 1334364. Its totient is φ = 336000.

The previous prime is 680327. The next prime is 680341. The reversal of 680336 is 633086.

680336 = T₁₉₀ + T₁₉₁ + ... + T₂₂₁.

It can be written as a sum of positive squares in 2 ways, for example, as 295936 + 384400 = 544^2 + 620^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406 + ... + 1826.

2⁶⁸⁰³³⁶ is an apocalyptic number.

It is an amenable number.

680336 is a deficient number, since it is larger than the sum of its proper divisors (654028).

680336 is a wasteful number, since it uses less digits than its factorization.

680336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 680336 is about 824.8248298881. The cubic root of 680336 is about 87.9510747325.

The spelling of 680336 in words is "six hundred eighty thousand, three hundred thirty-six".