685335958 has 16 divisors (see below), whose sum is σ = 1033608960. Its totient is φ = 340804800.

The previous prime is 685335953. The next prime is 685335961. The reversal of 685335958 is 859533586.

It is a happy number.

685335958 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 not an unprimeable number, because it can be changed into a prime (685335953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465163 + ... + 466633.

It is an arithmetic number, because the mean of its divisors is an integer number (64600560).

Almost surely, 2^685335958 is an apocalyptic number.

685335958 is a deficient number, since it is larger than the sum of its proper divisors (348273002).

685335958 is a wasteful number, since it uses less digits than its factorization.

685335958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583.

The product of its digits is 3888000, while the sum is 52.

The square root of 685335958 is about 26178.9220175316. The cubic root of 685335958 is about 881.6600714595.

The spelling of 685335958 in words is "six hundred eighty-five million, three hundred thirty-five thousand, nine hundred fifty-eight".