320589677 has 2 divisors, whose sum is σ = 320589678. Its totient is φ = 320589676.

The previous prime is 320589629. The next prime is 320589691. The reversal of 320589677 is 776985023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314920516 + 5669161 = 17746^2 + 2381^2 .

It is a cyclic number.

It is not a de Polignac number, because 320589677 - 2¹² = 320585581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320589377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160294838 + 160294839.

It is an arithmetic number, because the mean of its divisors is an integer number (160294839).

Almost surely, 2^320589677 is an apocalyptic number.

It is an amenable number.

320589677 is a deficient number, since it is larger than the sum of its proper divisors (1).

320589677 is an equidigital number, since it uses as much as digits as its factorization.

320589677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 320589677 is about 17905.0182071954. The cubic root of 320589677 is about 684.4102598181.

The spelling of 320589677 in words is "three hundred twenty million, five hundred eighty-nine thousand, six hundred seventy-seven".