670064678 has 8 divisors (see below), whose sum is σ = 1057996920. Its totient is φ = 317399040.

The previous prime is 670064627. The next prime is 670064683. The reversal of 670064678 is 876460076.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8816603 + ... + 8816678.

It is an arithmetic number, because the mean of its divisors is an integer number (132249615).

Almost surely, 2^670064678 is an apocalyptic number.

670064678 is a deficient number, since it is larger than the sum of its proper divisors (387932242).

670064678 is a wasteful number, since it uses less digits than its factorization.

670064678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17633302.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 670064678 is about 25885.6075455068. The cubic root of 670064678 is about 875.0621683176.

The spelling of 670064678 in words is "six hundred seventy million, sixty-four thousand, six hundred seventy-eight".