685801027 has 8 divisors (see below), whose sum is σ = 688674240. Its totient is φ = 682934400.

The previous prime is 685801021. The next prime is 685801037. The reversal of 685801027 is 720108586.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-685801027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685801021) 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, 331398 + ... + 333460.

It is an arithmetic number, because the mean of its divisors is an integer number (86084280).

Almost surely, 2^685801027 is an apocalyptic number.

685801027 is a deficient number, since it is larger than the sum of its proper divisors (2873213).

685801027 is a wasteful number, since it uses less digits than its factorization.

685801027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 685801027 is about 26187.8030197266. The cubic root of 685801027 is about 881.8594578814.

The spelling of 685801027 in words is "six hundred eighty-five million, eight hundred one thousand, twenty-seven".