204320377 has 2 divisors, whose sum is σ = 204320378. Its totient is φ = 204320376.

The previous prime is 204320317. The next prime is 204320381. The reversal of 204320377 is 773023402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121528576 + 82791801 = 11024^2 + 9099^2 .

It is a cyclic number.

It is not a de Polignac number, because 204320377 - 2¹⁵ = 204287609 is a prime.

It is not a weakly prime, because it can be changed into another prime (204320317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102160188 + 102160189.

It is an arithmetic number, because the mean of its divisors is an integer number (102160189).

Almost surely, 2^204320377 is an apocalyptic number.

It is an amenable number.

204320377 is a deficient number, since it is larger than the sum of its proper divisors (1).

204320377 is an equidigital number, since it uses as much as digits as its factorization.

204320377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 204320377 is about 14294.0678954593. The cubic root of 204320377 is about 588.9845378607.

Adding to 204320377 its reverse (773023402), we get a palindrome (977343779).

The spelling of 204320377 in words is "two hundred four million, three hundred twenty thousand, three hundred seventy-seven".