629620 has 12 divisors (see below), whose sum is σ = 1322244. Its totient is φ = 251840.

The previous prime is 629617. The next prime is 629623. The reversal of 629620 is 26926.

It is an interprime number because it is at equal distance from previous prime (629617) and next prime (629623).

It can be written as a sum of positive squares in 2 ways, for example, as 116964 + 512656 = 342^2 + 716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629623) 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 3 ways as a sum of consecutive naturals, for example, 15721 + ... + 15760.

It is an arithmetic number, because the mean of its divisors is an integer number (110187).

2⁶²⁹⁶²⁰ is an apocalyptic number.

It is an amenable number.

629620 is an abundant number, since it is smaller than the sum of its proper divisors (692624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

629620 is a wasteful number, since it uses less digits than its factorization.

629620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31490 (or 31488 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 629620 is about 793.4859797123. The cubic root of 629620 is about 85.7089494032.

The spelling of 629620 in words is "six hundred twenty-nine thousand, six hundred twenty".