320952697 has 8 divisors (see below), whose sum is σ = 346086216. Its totient is φ = 295882752.

The previous prime is 320952691. The next prime is 320952719. The reversal of 320952697 is 796259023.

It can be written as a sum of positive squares in 4 ways, for example, as 95472441 + 225480256 = 9771^2 + 15016^2 .

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 320952697 - 2¹¹ = 320950649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320952691) 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, 5128 + ... + 25849.

It is an arithmetic number, because the mean of its divisors is an integer number (43260777).

Almost surely, 2^320952697 is an apocalyptic number.

It is an amenable number.

320952697 is a deficient number, since it is larger than the sum of its proper divisors (25133519).

320952697 is a wasteful number, since it uses less digits than its factorization.

320952697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31787.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 320952697 is about 17915.1527205324. The cubic root of 320952697 is about 684.6684932237.

The spelling of 320952697 in words is "three hundred twenty million, nine hundred fifty-two thousand, six hundred ninety-seven".