685852424 has 32 divisors (see below), whose sum is σ = 1390252800. Its totient is φ = 316094400.

The previous prime is 685852421. The next prime is 685852441. The reversal of 685852424 is 424258586.

It is not an unprimeable number, because it can be changed into a prime (685852421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55352 + ... + 66599.

It is an arithmetic number, because the mean of its divisors is an integer number (43445400).

Almost surely, 2^685852424 is an apocalyptic number.

It is an amenable number.

685852424 is an abundant number, since it is smaller than the sum of its proper divisors (704400376).

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

685852424 is a wasteful number, since it uses less digits than its factorization.

685852424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122013 (or 122009 counting only the distinct ones).

The product of its digits is 614400, while the sum is 44.

The square root of 685852424 is about 26188.7843169552. The cubic root of 685852424 is about 881.8814874966.

The spelling of 685852424 in words is "six hundred eighty-five million, eight hundred fifty-two thousand, four hundred twenty-four".