671472 has 30 divisors (see below), whose sum is σ = 1879592. Its totient is φ = 223776.

The previous prime is 671471. The next prime is 671477. The reversal of 671472 is 274176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2188 + ... + 2475.

2⁶⁷¹⁴⁷² is an apocalyptic number.

It is an amenable number.

671472 is an abundant number, since it is smaller than the sum of its proper divisors (1208120).

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

671472 is a wasteful number, since it uses less digits than its factorization.

671472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4677 (or 4668 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 671472 is about 819.4339509686. The cubic root of 671472 is about 87.5674364486.

It can be divided in two parts, 6714 and 72, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 671472 in words is "six hundred seventy-one thousand, four hundred seventy-two".