683320646 has 4 divisors (see below), whose sum is σ = 1024980972. Its totient is φ = 341660322.

The previous prime is 683320619. The next prime is 683320667. The reversal of 683320646 is 646023386.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170830160 + ... + 170830163.

It is an arithmetic number, because the mean of its divisors is an integer number (256245243).

Almost surely, 2^683320646 is an apocalyptic number.

683320646 is a deficient number, since it is larger than the sum of its proper divisors (341660326).

683320646 is a wasteful number, since it uses less digits than its factorization.

683320646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341660325.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 683320646 is about 26140.4025600219. The cubic root of 683320646 is about 880.7950141581.

The spelling of 683320646 in words is "six hundred eighty-three million, three hundred twenty thousand, six hundred forty-six".