65891339 has 6 divisors (see below), whose sum is σ = 67721724. Its totient is φ = 64109160.

The previous prime is 65891323. The next prime is 65891347. The reversal of 65891339 is 93319856.

It is not a de Polignac number, because 65891339 - 2⁴ = 65891323 is a prime.

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 65891339.

It is not an unprimeable number, because it can be changed into a prime (65891359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22697 + ... + 25434.

It is an arithmetic number, because the mean of its divisors is an integer number (11286954).

Almost surely, 2^65891339 is an apocalyptic number.

65891339 is a deficient number, since it is larger than the sum of its proper divisors (1830385).

65891339 is an equidigital number, since it uses as much as digits as its factorization.

65891339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48205 (or 48168 counting only the distinct ones).

The product of its digits is 174960, while the sum is 44.

The square root of 65891339 is about 8117.3480275272. The cubic root of 65891339 is about 403.9020998444.

The spelling of 65891339 in words is "sixty-five million, eight hundred ninety-one thousand, three hundred thirty-nine".