65433217 has 8 divisors (see below), whose sum is σ = 66923496. Its totient is φ = 63952512.

The previous prime is 65433211. The next prime is 65433223. The reversal of 65433217 is 71233456.

It is an interprime number because it is at equal distance from previous prime (65433211) and next prime (65433223).

It can be written as a sum of positive squares in 4 ways, for example, as 11498881 + 53934336 = 3391^2 + 7344^2 .

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 65433217 - 2³ = 65433209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65433211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12453 + ... + 16909.

It is an arithmetic number, because the mean of its divisors is an integer number (8365437).

Almost surely, 2^65433217 is an apocalyptic number.

It is an amenable number.

65433217 is a deficient number, since it is larger than the sum of its proper divisors (1490279).

65433217 is a wasteful number, since it uses less digits than its factorization.

65433217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4787.

The product of its digits is 15120, while the sum is 31.

The square root of 65433217 is about 8089.0801083930. The cubic root of 65433217 is about 402.9638534408.

The spelling of 65433217 in words is "sixty-five million, four hundred thirty-three thousand, two hundred seventeen".