670090 has 16 divisors (see below), whose sum is σ = 1218888. Its totient is φ = 265216.

The previous prime is 670051. The next prime is 670097. The reversal of 670090 is 90076.

It can be written as a sum of positive squares in 4 ways, for example, as 370881 + 299209 = 609^2 + 547^2 .

It is not an unprimeable number, because it can be changed into a prime (670097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834 + ... + 1426.

2⁶⁷⁰⁰⁹⁰ is an apocalyptic number.

670090 is a deficient number, since it is larger than the sum of its proper divisors (548798).

670090 is a wasteful number, since it uses less digits than its factorization.

670090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 670090 is about 818.5902515911. The cubic root of 670090 is about 87.5073191157.

The spelling of 670090 in words is "six hundred seventy thousand, ninety".