685882045 has 32 divisors (see below), whose sum is σ = 915494400. Its totient is φ = 491129856.

The previous prime is 685882039. The next prime is 685882079. The reversal of 685882045 is 540288586.

It is a cyclic number.

It is not a de Polignac number, because 685882045 - 2⁵ = 685882013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 685881986 and 685882004.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 126837 + ... + 132133.

It is an arithmetic number, because the mean of its divisors is an integer number (28609200).

Almost surely, 2^685882045 is an apocalyptic number.

It is an amenable number.

685882045 is a deficient number, since it is larger than the sum of its proper divisors (229612355).

685882045 is a wasteful number, since it uses less digits than its factorization.

685882045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397.

The product of its (nonzero) digits is 614400, while the sum is 46.

The square root of 685882045 is about 26189.3498391999. The cubic root of 685882045 is about 881.8941830536.

The spelling of 685882045 in words is "six hundred eighty-five million, eight hundred eighty-two thousand, forty-five".