65849287 has 6 divisors (see below), whose sum is σ = 76600248. Its totient is φ = 56442204.

The previous prime is 65849261. The next prime is 65849291. The reversal of 65849287 is 78294856.

It is not a de Polignac number, because 65849287 - 2²³ = 57460679 is a prime.

It is a super-2 number, since 2×65849287² = 8672257196816738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 1343863 = 65849287 / (6 + 5 + 8 + 4 + 9 + 2 + 8 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65849287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65849237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 671883 + ... + 671980.

It is an arithmetic number, because the mean of its divisors is an integer number (12766708).

Almost surely, 2^65849287 is an apocalyptic number.

65849287 is a deficient number, since it is larger than the sum of its proper divisors (10750961).

65849287 is a wasteful number, since it uses less digits than its factorization.

65849287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343877 (or 1343870 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 65849287 is about 8114.7573592807. The cubic root of 65849287 is about 403.8161578177.

The spelling of 65849287 in words is "sixty-five million, eight hundred forty-nine thousand, two hundred eighty-seven".