670634 has 16 divisors (see below), whose sum is σ = 1071360. Its totient is φ = 314160.

The previous prime is 670627. The next prime is 670639. The reversal of 670634 is 436076.

It is not an unprimeable number, because it can be changed into a prime (670639) 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 7 ways as a sum of consecutive naturals, for example, 2687 + ... + 2925.

It is an arithmetic number, because the mean of its divisors is an integer number (66960).

2⁶⁷⁰⁶³⁴ is an apocalyptic number.

670634 is a deficient number, since it is larger than the sum of its proper divisors (400726).

670634 is a wasteful number, since it uses less digits than its factorization.

670634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 670634 is about 818.9224627521. The cubic root of 670634 is about 87.5309931024.

The spelling of 670634 in words is "six hundred seventy thousand, six hundred thirty-four".