685277163 has 24 divisors (see below), whose sum is σ = 1025450400. Its totient is φ = 440463744.

The previous prime is 685277129. The next prime is 685277179. The reversal of 685277163 is 361772586.

685277163 is a `hidden beast` number, since 68 + 527 + 7 + 1 + 63 = 666.

It is not a de Polignac number, because 685277163 - 2¹⁰ = 685276139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (685277063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238431 + ... + 241287.

It is an arithmetic number, because the mean of its divisors is an integer number (42727100).

Almost surely, 2^685277163 is an apocalyptic number.

685277163 is a deficient number, since it is larger than the sum of its proper divisors (340173237).

685277163 is a wasteful number, since it uses less digits than its factorization.

685277163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811 (or 3808 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 685277163 is about 26177.7990480483. The cubic root of 685277163 is about 881.6348581872.

The spelling of 685277163 in words is "six hundred eighty-five million, two hundred seventy-seven thousand, one hundred sixty-three".