204620369 has 2 divisors, whose sum is σ = 204620370. Its totient is φ = 204620368.

The previous prime is 204620363. The next prime is 204620389. The reversal of 204620369 is 963026402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154380625 + 50239744 = 12425^2 + 7088^2 .

It is a cyclic number.

It is not a de Polignac number, because 204620369 - 2¹² = 204616273 is a prime.

It is a super-2 number, since 2×204620369² = 83738990819392322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (204620363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102310184 + 102310185.

It is an arithmetic number, because the mean of its divisors is an integer number (102310185).

Almost surely, 2^204620369 is an apocalyptic number.

It is an amenable number.

204620369 is a deficient number, since it is larger than the sum of its proper divisors (1).

204620369 is an equidigital number, since it uses as much as digits as its factorization.

204620369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 204620369 is about 14304.5576303498. The cubic root of 204620369 is about 589.2726544085.

The spelling of 204620369 in words is "two hundred four million, six hundred twenty thousand, three hundred sixty-nine".