65320417 has 4 divisors (see below), whose sum is σ = 65553156. Its totient is φ = 65087680.

The previous prime is 65320369. The next prime is 65320427. The reversal of 65320417 is 71402356.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45819361 + 19501056 = 6769^2 + 4416^2 .

It is a cyclic number.

It is not a de Polignac number, because 65320417 - 2⁷ = 65320289 is a prime.

It is a super-3 number, since 3×65320417³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65320427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115948 + ... + 116509.

It is an arithmetic number, because the mean of its divisors is an integer number (16388289).

Almost surely, 2^65320417 is an apocalyptic number.

It is an amenable number.

65320417 is a deficient number, since it is larger than the sum of its proper divisors (232739).

65320417 is a wasteful number, since it uses less digits than its factorization.

65320417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232738.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 65320417 is about 8082.1047382473. The cubic root of 65320417 is about 402.7321644542.

The spelling of 65320417 in words is "sixty-five million, three hundred twenty thousand, four hundred seventeen".