68083957 has 2 divisors, whose sum is σ = 68083958. Its totient is φ = 68083956.

The previous prime is 68083949. The next prime is 68084039. The reversal of 68083957 is 75938086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63457156 + 4626801 = 7966^2 + 2151^2 .

It is a cyclic number.

It is not a de Polignac number, because 68083957 - 2³ = 68083949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68383957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34041978 + 34041979.

It is an arithmetic number, because the mean of its divisors is an integer number (34041979).

Almost surely, 2^68083957 is an apocalyptic number.

It is an amenable number.

68083957 is a deficient number, since it is larger than the sum of its proper divisors (1).

68083957 is an equidigital number, since it uses as much as digits as its factorization.

68083957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 68083957 is about 8251.3003217675. The cubic root of 68083957 is about 408.3334232218. Note that the first 3 decimals are identical.

The spelling of 68083957 in words is "sixty-eight million, eighty-three thousand, nine hundred fifty-seven".