670345377 has 16 divisors (see below), whose sum is σ = 1019168640. Its totient is φ = 388253952.

The previous prime is 670345339. The next prime is 670345387. The reversal of 670345377 is 773543076.

670345377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 670345377 - 2²³ = 661956769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670345307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504877 + ... + 506202.

It is an arithmetic number, because the mean of its divisors is an integer number (63698040).

Almost surely, 2^670345377 is an apocalyptic number.

It is an amenable number.

670345377 is a deficient number, since it is larger than the sum of its proper divisors (348823263).

670345377 is a wasteful number, since it uses less digits than its factorization.

670345377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011112.

The product of its (nonzero) digits is 370440, while the sum is 42.

The square root of 670345377 is about 25891.0288903319. The cubic root of 670345377 is about 875.1843429834.

The spelling of 670345377 in words is "six hundred seventy million, three hundred forty-five thousand, three hundred seventy-seven".