671454 has 36 divisors (see below), whose sum is σ = 1685736. Its totient is φ = 189216.

The previous prime is 671443. The next prime is 671467. The reversal of 671454 is 454176.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 671454.

It is an unprimeable number.

671454 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 17 ways as a sum of consecutive naturals, for example, 9162 + ... + 9234.

It is an arithmetic number, because the mean of its divisors is an integer number (46826).

2⁶⁷¹⁴⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842868).

671454 is an abundant number, since it is smaller than the sum of its proper divisors (1014282).

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

671454 is a wasteful number, since it uses less digits than its factorization.

671454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 85 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 671454 is about 819.4229677035. The cubic root of 671454 is about 87.5666539747.

It can be divided in two parts, 67 and 1454, that added together give a square (1521 = 39²).

The spelling of 671454 in words is "six hundred seventy-one thousand, four hundred fifty-four".