3216840317 has 8 divisors (see below), whose sum is σ = 3478536576. Its totient is φ = 2963196352.

The previous prime is 3216840313. The next prime is 3216840331. The reversal of 3216840317 is 7130486123.

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 3216840317 - 2² = 3216840313 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 (3216840311) 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, 2012243 + ... + 2013840.

It is an arithmetic number, because the mean of its divisors is an integer number (434817072).

Almost surely, 2^3216840317 is an apocalyptic number.

It is an amenable number.

3216840317 is a deficient number, since it is larger than the sum of its proper divisors (261696259).

3216840317 is a wasteful number, since it uses less digits than its factorization.

3216840317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026147.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3216840317 is about 56717.1959550188. The cubic root of 3216840317 is about 1476.1930888039.

The spelling of 3216840317 in words is "three billion, two hundred sixteen million, eight hundred forty thousand, three hundred seventeen".