671252 has 12 divisors (see below), whose sum is σ = 1203636. Its totient is φ = 327360.

The previous prime is 671249. The next prime is 671257. The reversal of 671252 is 252176.

It can be written as a sum of positive squares in 2 ways, for example, as 132496 + 538756 = 364^2 + 734^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671257) 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, 1883 + ... + 2210.

It is an arithmetic number, because the mean of its divisors is an integer number (100303).

2⁶⁷¹²⁵² is an apocalyptic number.

It is an amenable number.

671252 is a deficient number, since it is larger than the sum of its proper divisors (532384).

671252 is a wasteful number, since it uses less digits than its factorization.

671252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138 (or 4136 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 671252 is about 819.2997009642. The cubic root of 671252 is about 87.5578719195.

The spelling of 671252 in words is "six hundred seventy-one thousand, two hundred fifty-two".