65163893 has 2 divisors, whose sum is σ = 65163894. Its totient is φ = 65163892.

The previous prime is 65163869. The next prime is 65163929. The reversal of 65163893 is 39836156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45468049 + 19695844 = 6743^2 + 4438^2 .

It is a cyclic number.

It is not a de Polignac number, because 65163893 - 2²² = 60969589 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_3849647 and since 65163893 and 3849647 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65163893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65163803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32581946 + 32581947.

It is an arithmetic number, because the mean of its divisors is an integer number (32581947).

Almost surely, 2^65163893 is an apocalyptic number.

It is an amenable number.

65163893 is a deficient number, since it is larger than the sum of its proper divisors (1).

65163893 is an equidigital number, since it uses as much as digits as its factorization.

65163893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 65163893 is about 8072.4155616519. The cubic root of 65163893 is about 402.4102249529.

The spelling of 65163893 in words is "sixty-five million, one hundred sixty-three thousand, eight hundred ninety-three".