845688685 has 8 divisors (see below), whose sum is σ = 1015036416. Its totient is φ = 676410960.

The previous prime is 845688677. The next prime is 845688703. The reversal of 845688685 is 586886548.

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

It is not a de Polignac number, because 845688685 - 2³ = 845688677 is a prime.

It is a Duffinian number.

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, 14352 + ... + 43558.

It is an arithmetic number, because the mean of its divisors is an integer number (126879552).

Almost surely, 2^845688685 is an apocalyptic number.

It is an amenable number.

845688685 is a deficient number, since it is larger than the sum of its proper divisors (169347731).

845688685 is a wasteful number, since it uses less digits than its factorization.

845688685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35003.

The product of its digits is 14745600, while the sum is 58.

The square root of 845688685 is about 29080.7270369914. The cubic root of 845688685 is about 945.6639642048.

The spelling of 845688685 in words is "eight hundred forty-five million, six hundred eighty-eight thousand, six hundred eighty-five".