670273 has 4 divisors (see below), whose sum is σ = 671920. Its totient is φ = 668628.

The previous prime is 670261. The next prime is 670279. The reversal of 670273 is 372076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670273 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 286 + ... + 1192.

It is an arithmetic number, because the mean of its divisors is an integer number (167980).

2⁶⁷⁰²⁷³ is an apocalyptic number.

It is an amenable number.

670273 is a deficient number, since it is larger than the sum of its proper divisors (1647).

670273 is an equidigital number, since it uses as much as digits as its factorization.

670273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 670273 is about 818.7020214950. The cubic root of 670273 is about 87.5152844048.

The spelling of 670273 in words is "six hundred seventy thousand, two hundred seventy-three".