685667342 has 16 divisors (see below), whose sum is σ = 1039375152. Its totient is φ = 339216960.

The previous prime is 685667321. The next prime is 685667357. The reversal of 685667342 is 243766586.

685667342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 251378 + ... + 254090.

It is an arithmetic number, because the mean of its divisors is an integer number (64960947).

Almost surely, 2^685667342 is an apocalyptic number.

685667342 is a deficient number, since it is larger than the sum of its proper divisors (353707810).

685667342 is a wasteful number, since it uses less digits than its factorization.

685667342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003.

The product of its digits is 1451520, while the sum is 47.

The square root of 685667342 is about 26185.2504666272. The cubic root of 685667342 is about 881.8021530956.

The spelling of 685667342 in words is "six hundred eighty-five million, six hundred sixty-seven thousand, three hundred forty-two".