68560957 has 2 divisors, whose sum is σ = 68560958. Its totient is φ = 68560956.

The previous prime is 68560939. The next prime is 68560967. The reversal of 68560957 is 75906586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64176121 + 4384836 = 8011^2 + 2094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68560957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68560927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34280478 + 34280479.

It is an arithmetic number, because the mean of its divisors is an integer number (34280479).

Almost surely, 2^68560957 is an apocalyptic number.

It is an amenable number.

68560957 is a deficient number, since it is larger than the sum of its proper divisors (1).

68560957 is an equidigital number, since it uses as much as digits as its factorization.

68560957 is an odious number, because the sum of its binary digits is odd.

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

The square root of 68560957 is about 8280.1544067729. The cubic root of 68560957 is about 409.2848070984.

The spelling of 68560957 in words is "sixty-eight million, five hundred sixty thousand, nine hundred fifty-seven".