385604617 has 2 divisors, whose sum is σ = 385604618. Its totient is φ = 385604616.

The previous prime is 385604603. The next prime is 385604633. The reversal of 385604617 is 716406583.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349652601 + 35952016 = 18699^2 + 5996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385604617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385604617.

It is not a weakly prime, because it can be changed into another prime (385604647) 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 as a sum of consecutive naturals, namely, 192802308 + 192802309.

It is an arithmetic number, because the mean of its divisors is an integer number (192802309).

Almost surely, 2^385604617 is an apocalyptic number.

It is an amenable number.

385604617 is a deficient number, since it is larger than the sum of its proper divisors (1).

385604617 is an equidigital number, since it uses as much as digits as its factorization.

385604617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 385604617 is about 19636.8178939461. The cubic root of 385604617 is about 727.8592547067.

The spelling of 385604617 in words is "three hundred eighty-five million, six hundred four thousand, six hundred seventeen".