671770 has 32 divisors (see below), whose sum is σ = 1368576. Its totient is φ = 235200.

The previous prime is 671753. The next prime is 671777. The reversal of 671770 is 77176.

671770 is nontrivially palindromic in base 4.

It is not an unprimeable number, because it can be changed into a prime (671777) 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, 3312 + ... + 3508.

It is an arithmetic number, because the mean of its divisors is an integer number (42768).

2⁶⁷¹⁷⁷⁰ is an apocalyptic number.

671770 is an abundant number, since it is smaller than the sum of its proper divisors (696806).

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

671770 is a wasteful number, since it uses less digits than its factorization.

671770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 671770 is about 819.6157636356. The cubic root of 671770 is about 87.5803887071.

It can be divided in two parts, 671 and 770, that added together give a palindrome (1441).

The spelling of 671770 in words is "six hundred seventy-one thousand, seven hundred seventy".