65973937 has 2 divisors, whose sum is σ = 65973938. Its totient is φ = 65973936.

The previous prime is 65973917. The next prime is 65973967. The reversal of 65973937 is 73937956.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60233121 + 5740816 = 7761^2 + 2396^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65973937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65973917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32986968 + 32986969.

It is an arithmetic number, because the mean of its divisors is an integer number (32986969).

Almost surely, 2^65973937 is an apocalyptic number.

It is an amenable number.

65973937 is a deficient number, since it is larger than the sum of its proper divisors (1).

65973937 is an equidigital number, since it uses as much as digits as its factorization.

65973937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1071630, while the sum is 49.

The square root of 65973937 is about 8122.4341794809. The cubic root of 65973937 is about 404.0707996854.

The spelling of 65973937 in words is "sixty-five million, nine hundred seventy-three thousand, nine hundred thirty-seven".