68973937 has 2 divisors, whose sum is σ = 68973938. Its totient is φ = 68973936.

The previous prime is 68973923. The next prime is 68973953. The reversal of 68973937 is 73937986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68624656 + 349281 = 8284^2 + 591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68973937 is a prime.

It is not a weakly prime, because it can be changed into another prime (68973137) 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, 34486968 + 34486969.

It is an arithmetic number, because the mean of its divisors is an integer number (34486969).

Almost surely, 2^68973937 is an apocalyptic number.

It is an amenable number.

68973937 is a deficient number, since it is larger than the sum of its proper divisors (1).

68973937 is an equidigital number, since it uses as much as digits as its factorization.

68973937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 52.

The square root of 68973937 is about 8305.0549065012. The cubic root of 68973937 is about 410.1049443832.

The spelling of 68973937 in words is "sixty-eight million, nine hundred seventy-three thousand, nine hundred thirty-seven".