65683951 has 2 divisors, whose sum is σ = 65683952. Its totient is φ = 65683950.

The previous prime is 65683909. The next prime is 65683963. The reversal of 65683951 is 15938656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65683951 - 2⁹ = 65683439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65683898 and 65683907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65683901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32841975 + 32841976.

It is an arithmetic number, because the mean of its divisors is an integer number (32841976).

Almost surely, 2^65683951 is an apocalyptic number.

65683951 is a deficient number, since it is larger than the sum of its proper divisors (1).

65683951 is an equidigital number, since it uses as much as digits as its factorization.

65683951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 65683951 is about 8104.5635909653. The cubic root of 65683951 is about 403.4779040664.

The spelling of 65683951 in words is "sixty-five million, six hundred eighty-three thousand, nine hundred fifty-one".