320275705 has 8 divisors (see below), whose sum is σ = 386282952. Its totient is φ = 254919168.

The previous prime is 320275691. The next prime is 320275729. The reversal of 320275705 is 507572023.

It can be written as a sum of positive squares in 4 ways, for example, as 159163456 + 161112249 = 12616^2 + 12693^2 .

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 320275705 - 2⁵ = 320275673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161592 + ... + 163561.

It is an arithmetic number, because the mean of its divisors is an integer number (48285369).

Almost surely, 2^320275705 is an apocalyptic number.

It is an amenable number.

320275705 is a deficient number, since it is larger than the sum of its proper divisors (66007247).

320275705 is a wasteful number, since it uses less digits than its factorization.

320275705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325355.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 320275705 is about 17896.2483498637. The cubic root of 320275705 is about 684.1867593317.

The spelling of 320275705 in words is "three hundred twenty million, two hundred seventy-five thousand, seven hundred five".