629965 has 16 divisors (see below), whose sum is σ = 887040. Its totient is φ = 420480.

The previous prime is 629963. The next prime is 629977. The reversal of 629965 is 569926.

It is a happy number.

It is not a de Polignac number, because 629965 - 2¹ = 629963 is a prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216 + ... + 1654.

It is an arithmetic number, because the mean of its divisors is an integer number (55440).

2⁶²⁹⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

629965 is a deficient number, since it is larger than the sum of its proper divisors (257075).

629965 is a wasteful number, since it uses less digits than its factorization.

629965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its digits is 29160, while the sum is 37.

The square root of 629965 is about 793.7033450856. The cubic root of 629965 is about 85.7246012717.

It can be divided in two parts, 62996 and 5, that added together give a square (63001 = 251²).

The spelling of 629965 in words is "six hundred twenty-nine thousand, nine hundred sixty-five".