685802683 has 4 divisors (see below), whose sum is σ = 690808680. Its totient is φ = 680796688.

The previous prime is 685802633. The next prime is 685802771. The reversal of 685802683 is 386208586.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 386208586 = 2 ⋅193104293.

It is a cyclic number.

It is not a de Polignac number, because 685802683 - 2⁹ = 685802171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685802633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502793 + ... + 2503066.

It is an arithmetic number, because the mean of its divisors is an integer number (172702170).

Almost surely, 2^685802683 is an apocalyptic number.

685802683 is a deficient number, since it is larger than the sum of its proper divisors (5005997).

685802683 is a wasteful number, since it uses less digits than its factorization.

685802683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005996.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 685802683 is about 26187.8346374801. The cubic root of 685802683 is about 881.8601676879.

The spelling of 685802683 in words is "six hundred eighty-five million, eight hundred two thousand, six hundred eighty-three".