320580671 has 4 divisors (see below), whose sum is σ = 321346200. Its totient is φ = 319815144.

The previous prime is 320580629. The next prime is 320580677. The reversal of 320580671 is 176085023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176085023 = 4703 ⋅37441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320580671 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 (320580677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382136 + ... + 382973.

It is an arithmetic number, because the mean of its divisors is an integer number (80336550).

Almost surely, 2^320580671 is an apocalyptic number.

320580671 is a deficient number, since it is larger than the sum of its proper divisors (765529).

320580671 is an equidigital number, since it uses as much as digits as its factorization.

320580671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765528.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 320580671 is about 17904.7667116888. The cubic root of 320580671 is about 684.4038509442.

The spelling of 320580671 in words is "three hundred twenty million, five hundred eighty thousand, six hundred seventy-one".