671360 has 32 divisors (see below), whose sum is σ = 1606500. Its totient is φ = 268288.

The previous prime is 671357. The next prime is 671369. The reversal of 671360 is 63176.

It can be written as a sum of positive squares in 2 ways, for example, as 652864 + 18496 = 808^2 + 136^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (671369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116 + ... + 1164.

2⁶⁷¹³⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803250).

671360 is an abundant number, since it is smaller than the sum of its proper divisors (935140).

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

671360 is a wasteful number, since it uses less digits than its factorization.

671360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 671360 is about 819.3656082604. The cubic root of 671360 is about 87.5625674949.

The spelling of 671360 in words is "six hundred seventy-one thousand, three hundred sixty".