670863105 has 24 divisors (see below), whose sum is σ = 1268542080. Its totient is φ = 325266720.

The previous prime is 670863091. The next prime is 670863139. The reversal of 670863105 is 501368076.

It is not a de Polignac number, because 670863105 - 2⁵ = 670863073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670863105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 677145 + ... + 678134.

It is an arithmetic number, because the mean of its divisors is an integer number (52855920).

Almost surely, 2^670863105 is an apocalyptic number.

It is an amenable number.

670863105 is a deficient number, since it is larger than the sum of its proper divisors (597678975).

670863105 is a wasteful number, since it uses less digits than its factorization.

670863105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355301 (or 1355298 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 670863105 is about 25901.0251727610. The cubic root of 670863105 is about 875.4095954456.

The spelling of 670863105 in words is "six hundred seventy million, eight hundred sixty-three thousand, one hundred five".