65887313 has 2 divisors, whose sum is σ = 65887314. Its totient is φ = 65887312.

The previous prime is 65887303. The next prime is 65887337. The reversal of 65887313 is 31378856.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62457409 + 3429904 = 7903^2 + 1852^2 .

It is a cyclic number.

It is not a de Polignac number, because 65887313 - 2²⁴ = 49110097 is a prime.

It is a super-2 number, since 2×65887313² = 8682276028719938, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (65887303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32943656 + 32943657.

It is an arithmetic number, because the mean of its divisors is an integer number (32943657).

Almost surely, 2^65887313 is an apocalyptic number.

It is an amenable number.

65887313 is a deficient number, since it is larger than the sum of its proper divisors (1).

65887313 is an equidigital number, since it uses as much as digits as its factorization.

65887313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 65887313 is about 8117.1000363430. The cubic root of 65887313 is about 403.8938734573.

The spelling of 65887313 in words is "sixty-five million, eight hundred eighty-seven thousand, three hundred thirteen".