629997 has 8 divisors (see below), whose sum is σ = 843744. Its totient is φ = 418128.

The previous prime is 629989. The next prime is 630017. The reversal of 629997 is 799926.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 629997 - 2³ = 629989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838 + ... + 1400.

It is an arithmetic number, because the mean of its divisors is an integer number (105468).

2⁶²⁹⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

629997 is a deficient number, since it is larger than the sum of its proper divisors (213747).

629997 is a wasteful number, since it uses less digits than its factorization.

629997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939.

The product of its digits is 61236, while the sum is 42.

The square root of 629997 is about 793.7235034948. The cubic root of 629997 is about 85.7260527496.

It can be divided in two parts, 6 and 29997, that added together give a palindrome (30003).

The spelling of 629997 in words is "six hundred twenty-nine thousand, nine hundred ninety-seven".