420673 has 8 divisors (see below), whose sum is σ = 463680. Its totient is φ = 378480.

The previous prime is 420671. The next prime is 420677. The reversal of 420673 is 376024.

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 420673 - 2¹ = 420671 is a prime.

It is a super-3 number, since 3×420673³ = 223334167786083651, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420671) 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, 1723 + ... + 1951.

It is an arithmetic number, because the mean of its divisors is an integer number (57960).

2⁴²⁰⁶⁷³ is an apocalyptic number.

It is an amenable number.

420673 is a deficient number, since it is larger than the sum of its proper divisors (43007).

420673 is a wasteful number, since it uses less digits than its factorization.

420673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 420673 is about 648.5930927785. The cubic root of 420673 is about 74.9287026143.

Adding to 420673 its reverse (376024), we get a palindrome (796697).

The spelling of 420673 in words is "four hundred twenty thousand, six hundred seventy-three".