671121 has 12 divisors (see below), whose sum is σ = 1057680. Its totient is φ = 406680.

The previous prime is 671093. The next prime is 671123. The reversal of 671121 is 121176.

671121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 671121 - 2¹⁰ = 670097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671094 and 671103.

It is not an unprimeable number, because it can be changed into a prime (671123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3291 + ... + 3488.

It is an arithmetic number, because the mean of its divisors is an integer number (88140).

2⁶⁷¹¹²¹ is an apocalyptic number.

It is an amenable number.

671121 is a deficient number, since it is larger than the sum of its proper divisors (386559).

671121 is a wasteful number, since it uses less digits than its factorization.

671121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6796 (or 6793 counting only the distinct ones).

The product of its digits is 84, while the sum is 18.

The square root of 671121 is about 819.2197507385. The cubic root of 671121 is about 87.5521756845.

Adding to 671121 its reverse (121176), we get a palindrome (792297).

Subtracting from 671121 its reverse (121176), we obtain a palindrome (549945).

The spelling of 671121 in words is "six hundred seventy-one thousand, one hundred twenty-one".