68200757 has 2 divisors, whose sum is σ = 68200758. Its totient is φ = 68200756.

The previous prime is 68200723. The next prime is 68200763. The reversal of 68200757 is 75700286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57138481 + 11062276 = 7559^2 + 3326^2 .

It is a cyclic number.

It is not a de Polignac number, because 68200757 - 2²⁰ = 67152181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68200057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34100378 + 34100379.

It is an arithmetic number, because the mean of its divisors is an integer number (34100379).

Almost surely, 2^68200757 is an apocalyptic number.

It is an amenable number.

68200757 is a deficient number, since it is larger than the sum of its proper divisors (1).

68200757 is an equidigital number, since it uses as much as digits as its factorization.

68200757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 68200757 is about 8258.3749612136. The cubic root of 68200757 is about 408.5667924265.

The spelling of 68200757 in words is "sixty-eight million, two hundred thousand, seven hundred fifty-seven".