683401646 has 24 divisors (see below), whose sum is σ = 1065602304. Its totient is φ = 328697600.

The previous prime is 683401643. The next prime is 683401669. The reversal of 683401646 is 646104386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683401643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 593171 + ... + 594321.

It is an arithmetic number, because the mean of its divisors is an integer number (44400096).

Almost surely, 2^683401646 is an apocalyptic number.

683401646 is a deficient number, since it is larger than the sum of its proper divisors (382200658).

683401646 is a wasteful number, since it uses less digits than its factorization.

683401646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1535 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 683401646 is about 26141.9518399067. The cubic root of 683401646 is about 880.8298155737.

The spelling of 683401646 in words is "six hundred eighty-three million, four hundred one thousand, six hundred forty-six".