68363437 has 2 divisors, whose sum is σ = 68363438. Its totient is φ = 68363436.

The previous prime is 68363417. The next prime is 68363447. The reversal of 68363437 is 73436386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34327881 + 34035556 = 5859^2 + 5834^2 .

It is a cyclic number.

It is not a de Polignac number, because 68363437 - 2¹¹ = 68361389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68363437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68363417) 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, 34181718 + 34181719.

It is an arithmetic number, because the mean of its divisors is an integer number (34181719).

Almost surely, 2^68363437 is an apocalyptic number.

It is an amenable number.

68363437 is a deficient number, since it is larger than the sum of its proper divisors (1).

68363437 is an equidigital number, since it uses as much as digits as its factorization.

68363437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 40.

The square root of 68363437 is about 8268.2184900981. The cubic root of 68363437 is about 408.8913873995.

The spelling of 68363437 in words is "sixty-eight million, three hundred sixty-three thousand, four hundred thirty-seven".