68850853 has 2 divisors, whose sum is σ = 68850854. Its totient is φ = 68850852.

The previous prime is 68850829. The next prime is 68850863. The reversal of 68850853 is 35805886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62204769 + 6646084 = 7887^2 + 2578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68850853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68850823) 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, 34425426 + 34425427.

It is an arithmetic number, because the mean of its divisors is an integer number (34425427).

Almost surely, 2^68850853 is an apocalyptic number.

It is an amenable number.

68850853 is a deficient number, since it is larger than the sum of its proper divisors (1).

68850853 is an equidigital number, since it uses as much as digits as its factorization.

68850853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 68850853 is about 8297.6414118712. The cubic root of 68850853 is about 409.8608550233.

The spelling of 68850853 in words is "sixty-eight million, eight hundred fifty thousand, eight hundred fifty-three".