685344744 has 96 divisors (see below), whose sum is σ = 2232984000. Its totient is φ = 185504256.

The previous prime is 685344703. The next prime is 685344797. The reversal of 685344744 is 447443586.

685344744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 685344744.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26209 + ... + 45360.

It is an arithmetic number, because the mean of its divisors is an integer number (23260250).

Almost surely, 2^685344744 is an apocalyptic number.

It is an amenable number.

685344744 is an abundant number, since it is smaller than the sum of its proper divisors (1547639256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685344744 is a wasteful number, since it uses less digits than its factorization.

685344744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71607 (or 71600 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 45.

The square root of 685344744 is about 26179.0898237506. The cubic root of 685344744 is about 881.6638390678.

The spelling of 685344744 in words is "six hundred eighty-five million, three hundred forty-four thousand, seven hundred forty-four".