670394 has 8 divisors (see below), whose sum is σ = 1018560. Its totient is φ = 330876.

The previous prime is 670379. The next prime is 670399. The reversal of 670394 is 493076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (670399) 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, 1964 + ... + 2279.

It is an arithmetic number, because the mean of its divisors is an integer number (127320).

2⁶⁷⁰³⁹⁴ is an apocalyptic number.

670394 is a deficient number, since it is larger than the sum of its proper divisors (348166).

670394 is a wasteful number, since it uses less digits than its factorization.

670394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 670394 is about 818.7759156204. The cubic root of 670394 is about 87.5205502752.

The spelling of 670394 in words is "six hundred seventy thousand, three hundred ninety-four".