629983 has 8 divisors (see below), whose sum is σ = 673920. Its totient is φ = 587160.

The previous prime is 629977. The next prime is 629987. The reversal of 629983 is 389926.

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-629983 is a prime.

It is a d-powerful number, because it can be written as 6² + 2⁷ + 9⁴ + 9⁵ + 8⁵ + 3¹² .

It is a Duffinian 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 (629987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116 + ... + 1582.

It is an arithmetic number, because the mean of its divisors is an integer number (84240).

2⁶²⁹⁹⁸³ is an apocalyptic number.

629983 is a deficient number, since it is larger than the sum of its proper divisors (43937).

629983 is a wasteful number, since it uses less digits than its factorization.

629983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its digits is 23328, while the sum is 37.

The square root of 629983 is about 793.7146842537. The cubic root of 629983 is about 85.7254177341.

It can be divided in two parts, 62998 and 3, that added together give a square (63001 = 251²).

The spelling of 629983 in words is "six hundred twenty-nine thousand, nine hundred eighty-three".