65411917 has 2 divisors, whose sum is σ = 65411918. Its totient is φ = 65411916.

The previous prime is 65411867. The next prime is 65411939. The reversal of 65411917 is 71911456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64545156 + 866761 = 8034^2 + 931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65411917 is a prime.

It is a super-2 number, since 2×65411917² = 8557437771229778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65411317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32705958 + 32705959.

It is an arithmetic number, because the mean of its divisors is an integer number (32705959).

Almost surely, 2^65411917 is an apocalyptic number.

It is an amenable number.

65411917 is a deficient number, since it is larger than the sum of its proper divisors (1).

65411917 is an equidigital number, since it uses as much as digits as its factorization.

65411917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 34.

The square root of 65411917 is about 8087.7634114754. The cubic root of 65411917 is about 402.9201240631.

The spelling of 65411917 in words is "sixty-five million, four hundred eleven thousand, nine hundred seventeen".