670277 has 6 divisors (see below), whose sum is σ = 695058. Its totient is φ = 646352.

The previous prime is 670261. The next prime is 670279. The reversal of 670277 is 772076.

It can be written as a sum of positive squares in 3 ways, for example, as 106276 + 564001 = 326^2 + 751^2 .

It is not a de Polignac number, because 670277 - 2⁴ = 670261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 443 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (115843).

2⁶⁷⁰²⁷⁷ is an apocalyptic number.

It is an amenable number.

670277 is a deficient number, since it is larger than the sum of its proper divisors (24781).

670277 is an equidigital number, since it uses as much as digits as its factorization.

670277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 670277 is about 818.7044643826. The cubic root of 670277 is about 87.5154584933.

The spelling of 670277 in words is "six hundred seventy thousand, two hundred seventy-seven".