68659570 has 16 divisors (see below), whose sum is σ = 141242688. Its totient is φ = 23540400.

The previous prime is 68659561. The next prime is 68659571. The reversal of 68659570 is 7595686.

It is a self number, because there is not a number n which added to its sum of digits gives 68659570.

It is not an unprimeable number, because it can be changed into a prime (68659571) 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 7 ways as a sum of consecutive naturals, for example, 490356 + ... + 490495.

It is an arithmetic number, because the mean of its divisors is an integer number (8827668).

Almost surely, 2^68659570 is an apocalyptic number.

68659570 is an abundant number, since it is smaller than the sum of its proper divisors (72583118).

68659570 is a wasteful number, since it uses less digits than its factorization.

68659570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980865.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 68659570 is about 8286.1070473414. The cubic root of 68659570 is about 409.4809414059.

The spelling of 68659570 in words is "sixty-eight million, six hundred fifty-nine thousand, five hundred seventy".