68604037 has 2 divisors, whose sum is σ = 68604038. Its totient is φ = 68604036.

The previous prime is 68604007. The next prime is 68604071. The reversal of 68604037 is 73040686.

It is an a-pointer prime, because the next prime (68604071) can be obtained adding 68604037 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56535361 + 12068676 = 7519^2 + 3474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68604037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68603993 and 68604011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68604007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34302018 + 34302019.

It is an arithmetic number, because the mean of its divisors is an integer number (34302019).

Almost surely, 2^68604037 is an apocalyptic number.

It is an amenable number.

68604037 is a deficient number, since it is larger than the sum of its proper divisors (1).

68604037 is an equidigital number, since it uses as much as digits as its factorization.

68604037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 68604037 is about 8282.7553990203. The cubic root of 68604037 is about 409.3705133009.

The spelling of 68604037 in words is "sixty-eight million, six hundred four thousand, thirty-seven".