673629 has 16 divisors (see below), whose sum is σ = 993600. Its totient is φ = 402560.

The previous prime is 673619. The next prime is 673637. The reversal of 673629 is 926376.

It is a cyclic number.

It is not a de Polignac number, because 673629 - 2⁴ = 673613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

673629 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 673629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673609) 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, 4447 + ... + 4595.

It is an arithmetic number, because the mean of its divisors is an integer number (62100).

2⁶⁷³⁶²⁹ is an apocalyptic number.

It is an amenable number.

673629 is a deficient number, since it is larger than the sum of its proper divisors (319971).

673629 is a wasteful number, since it uses less digits than its factorization.

673629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its digits is 13608, while the sum is 33.

The square root of 673629 is about 820.7490481262. The cubic root of 673629 is about 87.6611018425.

The spelling of 673629 in words is "six hundred seventy-three thousand, six hundred twenty-nine".