320912617 has 8 divisors (see below), whose sum is σ = 331333632. Its totient is φ = 310615200.

The previous prime is 320912597. The next prime is 320912633. The reversal of 320912617 is 716219023.

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 320912617 - 2¹⁵ = 320879849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320919617) 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, 25609 + ... + 36022.

It is an arithmetic number, because the mean of its divisors is an integer number (41416704).

Almost surely, 2^320912617 is an apocalyptic number.

It is an amenable number.

320912617 is a deficient number, since it is larger than the sum of its proper divisors (10421015).

320912617 is a wasteful number, since it uses less digits than its factorization.

320912617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61799.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 320912617 is about 17914.0340794585. The cubic root of 320912617 is about 684.6399919774.

The spelling of 320912617 in words is "three hundred twenty million, nine hundred twelve thousand, six hundred seventeen".