670817378 has 16 divisors (see below), whose sum is σ = 1254515904. Its totient is φ = 261357360.

The previous prime is 670817369. The next prime is 670817383. The reversal of 670817378 is 873718076.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2177825 + ... + 2178132.

It is an arithmetic number, because the mean of its divisors is an integer number (78407244).

Almost surely, 2^670817378 is an apocalyptic number.

670817378 is a deficient number, since it is larger than the sum of its proper divisors (583698526).

670817378 is a wasteful number, since it uses less digits than its factorization.

670817378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4355977.

The product of its (nonzero) digits is 395136, while the sum is 47.

The square root of 670817378 is about 25900.1424320408. The cubic root of 670817378 is about 875.3897052654.

The spelling of 670817378 in words is "six hundred seventy million, eight hundred seventeen thousand, three hundred seventy-eight".