68865037 has 2 divisors, whose sum is σ = 68865038. Its totient is φ = 68865036.

The previous prime is 68865031. The next prime is 68865089. The reversal of 68865037 is 73056886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55071241 + 13793796 = 7421^2 + 3714^2 .

It is a cyclic number.

It is not a de Polignac number, because 68865037 - 2¹⁹ = 68340749 is a prime.

It is a super-2 number, since 2×68865037² = 9484786642022738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68864984 and 68865002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68865031) 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, 34432518 + 34432519.

It is an arithmetic number, because the mean of its divisors is an integer number (34432519).

Almost surely, 2^68865037 is an apocalyptic number.

It is an amenable number.

68865037 is a deficient number, since it is larger than the sum of its proper divisors (1).

68865037 is an equidigital number, since it uses as much as digits as its factorization.

68865037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 68865037 is about 8298.4960685657. The cubic root of 68865037 is about 409.8889983067. Note that the first 3 decimals are identical.

The spelling of 68865037 in words is "sixty-eight million, eight hundred sixty-five thousand, thirty-seven".