670980385 has 16 divisors (see below), whose sum is σ = 846179136. Its totient is φ = 510124608.

The previous prime is 670980341. The next prime is 670980407. The reversal of 670980385 is 583089076.

670980385 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 670980385 - 2⁷ = 670980257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34219 + ... + 50128.

It is an arithmetic number, because the mean of its divisors is an integer number (52886196).

Almost surely, 2^670980385 is an apocalyptic number.

It is an amenable number.

670980385 is a deficient number, since it is larger than the sum of its proper divisors (175198751).

670980385 is a wasteful number, since it uses less digits than its factorization.

670980385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84432.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 670980385 is about 25903.2890768721. The cubic root of 670980385 is about 875.4606053831.

The spelling of 670980385 in words is "six hundred seventy million, nine hundred eighty thousand, three hundred eighty-five".