685744348 has 24 divisors (see below), whose sum is σ = 1214753904. Its totient is φ = 338688000.

The previous prime is 685744337. The next prime is 685744357. The reversal of 685744348 is 843447586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196636 + ... + 200092.

It is an arithmetic number, because the mean of its divisors is an integer number (50614746).

Almost surely, 2^685744348 is an apocalyptic number.

It is an amenable number.

685744348 is a deficient number, since it is larger than the sum of its proper divisors (529009556).

685744348 is a wasteful number, since it uses less digits than its factorization.

685744348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053 (or 4051 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 49.

The square root of 685744348 is about 26186.7208332773. The cubic root of 685744348 is about 881.8351630362.

The spelling of 685744348 in words is "six hundred eighty-five million, seven hundred forty-four thousand, three hundred forty-eight".