685868846 has 8 divisors (see below), whose sum is σ = 1107942024. Its totient is φ = 316554840.

The previous prime is 685868773. The next prime is 685868849. The reversal of 685868846 is 648868586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685868849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13189760 + ... + 13189811.

It is an arithmetic number, because the mean of its divisors is an integer number (138492753).

Almost surely, 2^685868846 is an apocalyptic number.

685868846 is a deficient number, since it is larger than the sum of its proper divisors (422073178).

685868846 is a wasteful number, since it uses less digits than its factorization.

685868846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26379586.

The product of its digits is 17694720, while the sum is 59.

The square root of 685868846 is about 26189.0978462413. The cubic root of 685868846 is about 881.8885260090. Note that the first 3 decimals are identical.

The spelling of 685868846 in words is "six hundred eighty-five million, eight hundred sixty-eight thousand, eight hundred forty-six".