65171867 has 2 divisors, whose sum is σ = 65171868. Its totient is φ = 65171866.

The previous prime is 65171819. The next prime is 65171891. The reversal of 65171867 is 76817156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65171867 - 2⁶ = 65171803 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65171807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32585933 + 32585934.

It is an arithmetic number, because the mean of its divisors is an integer number (32585934).

Almost surely, 2^65171867 is an apocalyptic number.

65171867 is a deficient number, since it is larger than the sum of its proper divisors (1).

65171867 is an equidigital number, since it uses as much as digits as its factorization.

65171867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 41.

The square root of 65171867 is about 8072.9094507495. The cubic root of 65171867 is about 402.4266383791.

The spelling of 65171867 in words is "sixty-five million, one hundred seventy-one thousand, eight hundred sixty-seven".