670441 has 4 divisors (see below), whose sum is σ = 672084. Its totient is φ = 668800.

The previous prime is 670409. The next prime is 670447. The reversal of 670441 is 144076.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 38416 + 632025 = 196^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 670441 - 2⁵ = 670409 is a prime.

It is a super-2 number, since 2×670441² = 898982268962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670447) 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 3 ways as a sum of consecutive naturals, for example, 321 + ... + 1201.

It is an arithmetic number, because the mean of its divisors is an integer number (168021).

2⁶⁷⁰⁴⁴¹ is an apocalyptic number.

It is an amenable number.

670441 is a deficient number, since it is larger than the sum of its proper divisors (1643).

670441 is an equidigital number, since it uses as much as digits as its factorization.

670441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 670441 is about 818.8046164990. The cubic root of 670441 is about 87.5225955251.

It can be divided in two parts, 670 and 441, that added together give a palindrome (1111).

The spelling of 670441 in words is "six hundred seventy thousand, four hundred forty-one".