320360477 has 4 divisors (see below), whose sum is σ = 331407420. Its totient is φ = 309313536.

The previous prime is 320360473. The next prime is 320360489. The reversal of 320360477 is 774063023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 774063023 = 17 ⋅45533119.

It can be written as a sum of positive squares in 2 ways, for example, as 55517401 + 264843076 = 7451^2 + 16274^2 .

It is not a de Polignac number, because 320360477 - 2² = 320360473 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 (320360473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5523428 + ... + 5523485.

It is an arithmetic number, because the mean of its divisors is an integer number (82851855).

Almost surely, 2^320360477 is an apocalyptic number.

It is an amenable number.

320360477 is a deficient number, since it is larger than the sum of its proper divisors (11046943).

320360477 is a wasteful number, since it uses less digits than its factorization.

320360477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11046942.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 320360477 is about 17898.6166225214. The cubic root of 320360477 is about 684.2471185395.

The spelling of 320360477 in words is "three hundred twenty million, three hundred sixty thousand, four hundred seventy-seven".