629967 has 16 divisors (see below), whose sum is σ = 937440. Its totient is φ = 373632.

The previous prime is 629963. The next prime is 629977. The reversal of 629967 is 769926.

It is not a de Polignac number, because 629967 - 2² = 629963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an Ulam number.

629967 is a lucky 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 853 + ... + 1409.

It is an arithmetic number, because the mean of its divisors is an integer number (58590).

2⁶²⁹⁹⁶⁷ is an apocalyptic number.

629967 is a deficient number, since it is larger than the sum of its proper divisors (307473).

629967 is a wasteful number, since it uses less digits than its factorization.

629967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602.

The product of its digits is 40824, while the sum is 39.

The square root of 629967 is about 793.7046050011. The cubic root of 629967 is about 85.7246919905.

It can be divided in two parts, 629 and 967, that added together give a triangular number (1596 = T₅₆).

The spelling of 629967 in words is "six hundred twenty-nine thousand, nine hundred sixty-seven".