671453 has 4 divisors (see below), whose sum is σ = 674688. Its totient is φ = 668220.

The previous prime is 671443. The next prime is 671467. The reversal of 671453 is 354176.

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 671453 - 2¹⁴ = 655069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1283 + ... + 1728.

It is an arithmetic number, because the mean of its divisors is an integer number (168672).

2⁶⁷¹⁴⁵³ is an apocalyptic number.

It is an amenable number.

671453 is a deficient number, since it is larger than the sum of its proper divisors (3235).

671453 is a wasteful number, since it uses less digits than its factorization.

671453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234.

The product of its digits is 2520, while the sum is 26.

The square root of 671453 is about 819.4223575178. The cubic root of 671453 is about 87.5666105035.

The spelling of 671453 in words is "six hundred seventy-one thousand, four hundred fifty-three".