671473 has 4 divisors (see below), whose sum is σ = 732528. Its totient is φ = 610420.

The previous prime is 671471. The next prime is 671477. The reversal of 671473 is 374176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 671473 - 2¹ = 671471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671471) 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, 30511 + ... + 30532.

It is an arithmetic number, because the mean of its divisors is an integer number (183132).

2⁶⁷¹⁴⁷³ is an apocalyptic number.

It is an amenable number.

671473 is a deficient number, since it is larger than the sum of its proper divisors (61055).

671473 is a wasteful number, since it uses less digits than its factorization.

671473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61054.

The product of its digits is 3528, while the sum is 28.

The square root of 671473 is about 819.4345611457. The cubic root of 671473 is about 87.5674799190.

It can be divided in two parts, 67 and 1473, that added together give a triangular number (1540 = T₅₅).

The spelling of 671473 in words is "six hundred seventy-one thousand, four hundred seventy-three".