671224 has 8 divisors (see below), whose sum is σ = 1258560. Its totient is φ = 335608.

The previous prime is 671219. The next prime is 671233. The reversal of 671224 is 422176.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 671195 and 671204.

It is a congruent number.

It is an unprimeable number.

671224 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41944 + ... + 41959.

It is an arithmetic number, because the mean of its divisors is an integer number (157320).

2⁶⁷¹²²⁴ is an apocalyptic number.

It is an amenable number.

671224 is a deficient number, since it is larger than the sum of its proper divisors (587336).

671224 is a wasteful number, since it uses less digits than its factorization.

671224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83909 (or 83905 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 671224 is about 819.2826130219. The cubic root of 671224 is about 87.5566544659.

The spelling of 671224 in words is "six hundred seventy-one thousand, two hundred twenty-four".