65383397 has 8 divisors (see below), whose sum is σ = 68244120. Its totient is φ = 62583040.

The previous prime is 65383379. The next prime is 65383421. The reversal of 65383397 is 79338356.

It is a Cunningham number, because it is equal to 8086²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 3147076 + 62236321 = 1774^2 + 7889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65383397 - 2¹⁴ = 65367013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65383327) 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 7 ways as a sum of consecutive naturals, for example, 12872 + ... + 17217.

It is an arithmetic number, because the mean of its divisors is an integer number (8530515).

Almost surely, 2^65383397 is an apocalyptic number.

It is an amenable number.

65383397 is a deficient number, since it is larger than the sum of its proper divisors (2860723).

65383397 is a wasteful number, since it uses less digits than its factorization.

65383397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30183.

The product of its digits is 408240, while the sum is 44.

The square root of 65383397 is about 8086.0000618353. Note that the first 4 decimals coincide. The cubic root of 65383397 is about 402.8615569958.

The spelling of 65383397 in words is "sixty-five million, three hundred eighty-three thousand, three hundred ninety-seven".