670239 has 6 divisors (see below), whose sum is σ = 968136. Its totient is φ = 446820.

The previous prime is 670237. The next prime is 670249. The reversal of 670239 is 932076.

670239 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 670239 - 2¹ = 670237 is a prime.

670239 is strictly pandigital in base 7.

670239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670231) 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 5 ways as a sum of consecutive naturals, for example, 37227 + ... + 37244.

It is an arithmetic number, because the mean of its divisors is an integer number (161356).

2⁶⁷⁰²³⁹ is an apocalyptic number.

670239 is a deficient number, since it is larger than the sum of its proper divisors (297897).

670239 is a wasteful number, since it uses less digits than its factorization.

670239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74477 (or 74474 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 670239 is about 818.6812566561. The cubic root of 670239 is about 87.5138046247.

It can be divided in two parts, 670 and 239, that added together give a palindrome (909).

The spelling of 670239 in words is "six hundred seventy thousand, two hundred thirty-nine".