629685 has 24 divisors (see below), whose sum is σ = 1248000. Its totient is φ = 287712.

The previous prime is 629683. The next prime is 629687. The reversal of 629685 is 586926.

It is an interprime number because it is at equal distance from previous prime (629683) and next prime (629687).

It is not a de Polignac number, because 629685 - 2¹ = 629683 is a prime.

It is a Curzon number.

629685 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 685 + ... + 1314.

It is an arithmetic number, because the mean of its divisors is an integer number (52000).

2⁶²⁹⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

629685 is a deficient number, since it is larger than the sum of its proper divisors (618315).

629685 is a wasteful number, since it uses less digits than its factorization.

629685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017 (or 2014 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 629685 is about 793.5269371609. The cubic root of 629685 is about 85.7118987431.

The spelling of 629685 in words is "six hundred twenty-nine thousand, six hundred eighty-five".