680038195 has 16 divisors (see below), whose sum is σ = 823173120. Its totient is φ = 539298144.

The previous prime is 680038193. The next prime is 680038211. The reversal of 680038195 is 591830086.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 680038195 - 2¹ = 680038193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680038193) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 385726 + ... + 387484.

It is an arithmetic number, because the mean of its divisors is an integer number (51448320).

Almost surely, 2^680038195 is an apocalyptic number.

680038195 is a deficient number, since it is larger than the sum of its proper divisors (143134925).

680038195 is a wasteful number, since it uses less digits than its factorization.

680038195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 680038195 is about 26077.5419662207. The cubic root of 680038195 is about 879.3823985263.

The spelling of 680038195 in words is "six hundred eighty million, thirty-eight thousand, one hundred ninety-five".