65208287 has 2 divisors, whose sum is σ = 65208288. Its totient is φ = 65208286.

The previous prime is 65208251. The next prime is 65208307. The reversal of 65208287 is 78280256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65208287 - 2¹⁶ = 65142751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65208287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65208217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32604143 + 32604144.

It is an arithmetic number, because the mean of its divisors is an integer number (32604144).

Almost surely, 2^65208287 is an apocalyptic number.

65208287 is a deficient number, since it is larger than the sum of its proper divisors (1).

65208287 is an equidigital number, since it uses as much as digits as its factorization.

65208287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 65208287 is about 8075.1648280391. The cubic root of 65208287 is about 402.5015871239.

The spelling of 65208287 in words is "sixty-five million, two hundred eight thousand, two hundred eighty-seven".