65678983 has 2 divisors, whose sum is σ = 65678984. Its totient is φ = 65678982.

The previous prime is 65678969. The next prime is 65678993. The reversal of 65678983 is 38987656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65678983 - 2⁹ = 65678471 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 65678983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65678933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32839491 + 32839492.

It is an arithmetic number, because the mean of its divisors is an integer number (32839492).

Almost surely, 2^65678983 is an apocalyptic number.

65678983 is a deficient number, since it is larger than the sum of its proper divisors (1).

65678983 is an equidigital number, since it uses as much as digits as its factorization.

65678983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The square root of 65678983 is about 8104.2570911836. The cubic root of 65678983 is about 403.4677314710.

The spelling of 65678983 in words is "sixty-five million, six hundred seventy-eight thousand, nine hundred eighty-three".