673770 has 32 divisors (see below), whose sum is σ = 1663488. Its totient is φ = 174528.

The previous prime is 673769. The next prime is 673781. The reversal of 673770 is 77376.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 673770.

It is an unprimeable number.

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, 807 + ... + 1413.

It is an arithmetic number, because the mean of its divisors is an integer number (51984).

2⁶⁷³⁷⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831744).

673770 is an abundant number, since it is smaller than the sum of its proper divisors (989718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673770 is a wasteful number, since it uses less digits than its factorization.

673770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654.

The product of its (nonzero) digits is 6174, while the sum is 30.

The square root of 673770 is about 820.8349407768. The cubic root of 673770 is about 87.6672176486.

The spelling of 673770 in words is "six hundred seventy-three thousand, seven hundred seventy".