671610 has 32 divisors (see below), whose sum is σ = 1642752. Its totient is φ = 175680.

The previous prime is 671609. The next prime is 671633. The reversal of 671610 is 16176.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1647 + ... + 2013.

It is an arithmetic number, because the mean of its divisors is an integer number (51336).

2⁶⁷¹⁶¹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821376).

671610 is an abundant number, since it is smaller than the sum of its proper divisors (971142).

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

671610 is a wasteful number, since it uses less digits than its factorization.

671610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 671610 is about 819.5181511108. The cubic root of 671610 is about 87.5734349506.

Adding to 671610 its reverse (16176), we get a palindrome (687786).

The spelling of 671610 in words is "six hundred seventy-one thousand, six hundred ten".