65973727 has 2 divisors, whose sum is σ = 65973728. Its totient is φ = 65973726.

The previous prime is 65973707. The next prime is 65973731. The reversal of 65973727 is 72737956.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65973727 - 2⁷ = 65973599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65973707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32986863 + 32986864.

It is an arithmetic number, because the mean of its divisors is an integer number (32986864).

Almost surely, 2^65973727 is an apocalyptic number.

65973727 is a deficient number, since it is larger than the sum of its proper divisors (1).

65973727 is an equidigital number, since it uses as much as digits as its factorization.

65973727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 555660, while the sum is 46.

The square root of 65973727 is about 8122.4212523114. The cubic root of 65973727 is about 404.0703709557.

The spelling of 65973727 in words is "sixty-five million, nine hundred seventy-three thousand, seven hundred twenty-seven".