673653 has 8 divisors (see below), whose sum is σ = 902016. Its totient is φ = 447200.

The previous prime is 673649. The next prime is 673667. The reversal of 673653 is 356376.

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

It is a cyclic number.

It is not a de Polignac number, because 673653 - 2² = 673649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 673653.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 673653.

It is not an unprimeable number, because it can be changed into a prime (673613) 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 7 ways as a sum of consecutive naturals, for example, 1033 + ... + 1553.

It is an arithmetic number, because the mean of its divisors is an integer number (112752).

2⁶⁷³⁶⁵³ is an apocalyptic number.

It is an amenable number.

673653 is a deficient number, since it is larger than the sum of its proper divisors (228363).

673653 is a wasteful number, since it uses less digits than its factorization.

673653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955.

The product of its digits is 11340, while the sum is 30.

The square root of 673653 is about 820.7636687866. The cubic root of 673653 is about 87.6621428911.

It can be divided in two parts, 673 and 653, that added together give a triangular number (1326 = T₅₁).

The spelling of 673653 in words is "six hundred seventy-three thousand, six hundred fifty-three".